{"id":40261,"date":"2026-07-10T16:16:37","date_gmt":"2026-07-10T08:16:37","guid":{"rendered":"https:\/\/aviaelectronics.com\/en\/?p=40261"},"modified":"2026-07-13T10:08:50","modified_gmt":"2026-07-13T02:08:50","slug":"mil-dtl-38999-dust-cap","status":"publish","type":"post","link":"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/","title":{"rendered":"\u0417\u0430\u0449\u0438\u0442\u043d\u044b\u0435 \u043a\u043e\u043b\u043f\u0430\u0447\u043a\u0438 \u0438 \u0437\u0430\u0449\u0438\u0442\u043d\u044b\u0435 \u0447\u0435\u0445\u043b\u044b MIL-DTL-38999"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #0a0a0a;color:#0a0a0a\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #0a0a0a;color:#0a0a0a\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#What_Is_a_MIL-DTL-38999_Dust_Cap\" >What Is a MIL-DTL-38999 Dust Cap?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Why_Do_Unmated_MIL-DTL-38999_Connectors_Need_Protective_Covers\" >Why Do Unmated MIL-DTL-38999 Connectors Need Protective Covers?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Protection_Against_Dust_and_Contamination\" >Protection Against Dust and Contamination<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Protection_Against_Moisture\" >Protection Against Moisture<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Protection_Against_Mechanical_Damage\" >Protection Against Mechanical Damage<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Protection_of_Coupling_Interfaces\" >Protection of Coupling Interfaces<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MIL-DTL-38999_Dust_Cap_Types_by_Series\" >MIL-DTL-38999 Dust Cap Types by Series<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MIL-DTL-38999_Series_I_Dust_Caps\" >MIL-DTL-38999 Series I Dust Caps<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MIL-DTL-38999_Series_II_Dust_Caps\" >MIL-DTL-38999 Series II Dust Caps<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MIL-DTL-38999_Series_III_Dust_Caps\" >MIL-DTL-38999 Series III Dust Caps<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MIL-DTL-38999_Series_IV_Dust_Caps\" >MIL-DTL-38999 Series IV Dust Caps<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Plug_Covers_vs_Receptacle_Covers\" >Plug Covers vs Receptacle Covers<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Plug_Protective_Cover\" >Plug Protective Cover<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Receptacle_Protective_Cover\" >Receptacle Protective Cover<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Common_MIL-DTL-38999_Protective_Cover_Part_Numbers\" >Common MIL-DTL-38999 Protective Cover Part Numbers<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MS27501\" >MS27501<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MS27502\" >MS27502<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MS27510\" >MS27510<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MS27511\" >MS27511<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#D3899932\" >D38999\/32<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#D3899933\" >D38999\/33<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#D3899951\" >D38999\/51<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#D3899952\" >D38999\/52<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Materials_and_Finishes\" >Materials and Finishes<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Aluminum_Alloy\" >Aluminum Alloy<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Electroless_Nickel\" >Electroless Nickel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Cadmium-Based_Finishes\" >Cadmium-Based Finishes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Stainless_Steel_or_Corrosion-Resistant_Steel\" >Stainless Steel or Corrosion-Resistant Steel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Composite_Materials\" >Composite Materials<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Match_the_Cover_to_the_Application_Not_Just_the_Color\" >Match the Cover to the Application, Not Just the Color<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Should_the_Dust_Cap_Finish_Match_the_Connector\" >Should the Dust Cap Finish Match the Connector?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Chain_Rope_Ring_and_Lanyard_Options\" >Chain, Rope, Ring, and Lanyard Options<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#No_Attachment\" >No Attachment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Chain_Attachment\" >Chain Attachment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Chain_with_Ring\" >Chain with Ring<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Rope_or_Flexible_Retention\" >Rope or Flexible Retention<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Attachment_Length\" >Attachment Length<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#How_to_Select_the_Correct_MIL-DTL-38999_Dust_Cap\" >How to Select the Correct MIL-DTL-38999 Dust Cap<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Step_1_Identify_the_Connector_Series\" >Step 1: Identify the Connector Series<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Step_2_Identify_the_Connector_Half\" >Step 2: Identify the Connector Half<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Step_3_Confirm_the_Shell_Size\" >Step 3: Confirm the Shell Size<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Step_4_Select_the_Material_and_Finish\" >Step 4: Select the Material and Finish<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-43\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Step_5_Choose_the_Attachment_Method\" >Step 5: Choose the Attachment Method<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-44\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Step_6_Check_Attachment_Length\" >Step 6: Check Attachment Length<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-45\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Step_7_Review_the_Operating_Environment\" >Step 7: Review the Operating Environment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-46\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Step_8_Confirm_Documentation_Requirements\" >Step 8: Confirm Documentation Requirements<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-47\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Does_Insert_Arrangement_Matter_When_Selecting_a_Dust_Cap\" >Does Insert Arrangement Matter When Selecting a Dust Cap?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-48\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#How_to_Read_a_MIL-DTL-38999_Protective_Cover_Part_Number\" >How to Read a MIL-DTL-38999 Protective Cover Part Number<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-49\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MIL-DTL-38999_Series_I_Protective_Cover_Part_Number\" >MIL-DTL-38999  Series I Protective Cover Part Number<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-50\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MIL-DTL-38999_Series_II_Protective_Cover_Part_Number\" >MIL-DTL-38999  Series II Protective Cover Part Number<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-51\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#MIL-DTL-38999_Series_III_Protective_Cover_Part_Number\" >MIL-DTL-38999  Series III Protective Cover Part Number<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-52\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Dust_Caps_vs_Backshells_Sealing_Plugs_and_Protective_Boots\" >Dust Caps vs Backshells, Sealing Plugs, and Protective Boots<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-53\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Dust_Cap_or_Protective_Cover\" >Dust Cap or Protective Cover<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-54\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Backshell\" >Backshell<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-55\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Sealing_Plug\" >Sealing Plug<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-56\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Strain_Relief_Boot\" >Strain Relief Boot<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-57\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Dummy_Stowage_Receptacle\" >Dummy Stowage Receptacle<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-58\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Typical_Applications\" >Typical Applications<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-59\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Aircraft_and_Aerospace_Systems\" >Aircraft and Aerospace Systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-60\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Communication_and_Electronic_Equipment\" >Communication and Electronic Equipment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-61\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Rail_and_Transportation_Equipment\" >Rail and Transportation Equipment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-62\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Marine_and_Offshore_Equipment\" >Marine and Offshore Equipment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-63\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Industrial_Automation\" >Industrial Automation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-64\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Test_and_Measurement_Systems\" >Test and Measurement Systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-65\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Ground_Support_Equipment\" >Ground Support Equipment<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-66\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Installation_and_Maintenance\" >Installation and Maintenance<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-67\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Inspect_the_Connector_First\" >Inspect the Connector First<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-68\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Inspect_the_Gasket_or_Sealing_Element\" >Inspect the Gasket or Sealing Element<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-69\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Fully_Engage_the_Cover\" >Fully Engage the Cover<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-70\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Inspect_the_Chain_or_Retention_Device\" >Inspect the Chain or Retention Device<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-71\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Keep_the_Inside_of_the_Cover_Clean\" >Keep the Inside of the Cover Clean<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-72\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Common_MIL-DTL-38999_Dust_Cap_Selection_Mistakes\" >Common MIL-DTL-38999 Dust Cap Selection Mistakes<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-73\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Mistake_1_Choosing_by_Diameter_Only\" >Mistake 1: Choosing by Diameter Only<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-74\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Mistake_2_Confusing_Plug_and_Receptacle_Covers\" >Mistake 2: Confusing Plug and Receptacle Covers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-75\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Mistake_3_Ignoring_Shell_Size\" >Mistake 3: Ignoring Shell Size<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-76\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Mistake_4_Selecting_by_Color\" >Mistake 4: Selecting by Color<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-77\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Mistake_5_Forgetting_the_Attachment_Requirement\" >Mistake 5: Forgetting the Attachment Requirement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-78\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Mistake_6_Ignoring_Chain_Length\" >Mistake 6: Ignoring Chain Length<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-79\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Mistake_7_Assuming_All_Compatible_Parts_Have_the_Same_Compliance_Status\" >Mistake 7: Assuming All Compatible Parts Have the Same Compliance Status<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-80\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Mistake_8_Treating_a_Dust_Cap_as_a_Backshell\" >Mistake 8: Treating a Dust Cap as a Backshell<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-81\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Information_to_Provide_When_Requesting_a_Quote\" >Information to Provide When Requesting a Quote<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-82\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Why_Choose_AVIA_for_MIL-DTL-38999_Protective_Covers\" >Why Choose AVIA for MIL-DTL-38999 Protective Covers?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-83\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Frequently_Asked_Questions\" >Frequently Asked Questions<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-84\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#What_is_the_difference_between_a_dust_cap_and_a_protective_cover\" >What is the difference between a dust cap and a protective cover?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-85\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Are_MIL-DTL-38999_dust_caps_required\" >Are MIL-DTL-38999 dust caps required?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-86\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Which_protective_cover_fits_a_D3899920_receptacle\" >Which protective cover fits a D38999\/20 receptacle?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-87\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Which_protective_cover_fits_a_D3899926_plug\" >Which protective cover fits a D38999\/26 plug?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-88\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Can_a_Series_I_dust_cap_fit_a_Series_II_connector\" >Can a Series I dust cap fit a Series II connector?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-89\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Does_the_insert_arrangement_affect_dust_cap_selection\" >Does the insert arrangement affect dust cap selection?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-90\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Should_the_dust_cap_finish_match_the_connector_finish\" >Should the dust cap finish match the connector finish?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-91\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Are_MIL-DTL-38999_dust_caps_waterproof\" >Are MIL-DTL-38999 dust caps waterproof?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-92\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Can_one_dust_cap_fit_multiple_MIL-DTL-38999_series\" >Can one dust cap fit multiple MIL-DTL-38999 series?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-93\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Do_protective_covers_come_with_chains\" >Do protective covers come with chains?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-94\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#How_do_I_find_the_correct_dust_cap_for_an_unknown_connector\" >How do I find the correct dust cap for an unknown connector?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-95\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Related_Guides%E2%80%8B\" >Related Guides\u200b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-96\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Related_Connector_Standards\" >Related Connector Standards<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-97\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Comparison_Guides\" >Comparison Guides<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-98\" href=\"#\" data-href=\"https:\/\/aviaelectronics.com\/ru\/mil-dtl-38999-dust-cap\/#Related_Guides\" >Related Guides<\/a><\/li><\/ul><\/nav><\/div>\n\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"40261\" class=\"elementor elementor-40261\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"wd-negative-gap elementor-element elementor-element-632b238 e-flex e-con-boxed e-con e-parent\" data-id=\"632b238\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-02408c7 elementor-widget elementor-widget-image\" data-id=\"02408c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"400\" height=\"267\" src=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/06\/MIL-DTL-38999-Series-Caps-400x267.webp\" class=\"attachment-medium size-medium wp-image-37890\" alt=\"MIL-DTL-38999 Dust Cap\" srcset=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/06\/MIL-DTL-38999-Series-Caps-400x267.webp 400w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/06\/MIL-DTL-38999-Series-Caps-768x512.webp 768w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/06\/MIL-DTL-38999-Series-Caps-18x12.webp 18w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/06\/MIL-DTL-38999-Series-Caps-430x287.webp 430w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/06\/MIL-DTL-38999-Series-Caps-700x467.webp 700w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/06\/MIL-DTL-38999-Series-Caps-150x100.webp 150w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/06\/MIL-DTL-38999-Series-Caps.webp 1200w\" sizes=\"(max-width: 400px) 100vw, 400px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">MIL-DTL-38999 Dust Cap<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-94e3529 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"94e3529\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/amphenol-aerospace.com\/products\/mil-dtl-38999-connectors\" target=\"_blank\" rel=\"noopener\">MIL-DTL-38999<\/a> dust caps, officially referred to as <b>protective covers<\/b>, are designed to protect the exposed mating interface of unmated MIL-DTL-38999 circular connectors.<\/p><p>When a connector is disconnected, its contacts, insert, coupling mechanism, and sealing surfaces may be exposed to dust, moisture, dirt, handling damage, and other environmental contaminants. A correctly selected protective cover helps keep the connector interface clean and protected until the connector is ready to be mated again.<\/p><p>MIL-DTL-38999 protective covers are available for plugs and receptacles across Series I, Series II, Series III, and Series IV connector families. Selection depends primarily on the connector series, connector type, shell size, material and finish, and the required attachment method.<\/p><p>This guide explains the differences between MIL-DTL-38999 dust cap types, common military part numbers, materials, finishes, attachment options, and the key factors engineers and buyers should consider when selecting a protective cover.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cecd287 elementor-widget elementor-widget-heading\" data-id=\"cecd287\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"What_Is_a_MIL-DTL-38999_Dust_Cap\"><\/span>What Is a MIL-DTL-38999 Dust Cap?<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6af63e6 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"6af63e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A MIL-DTL-38999 dust cap is a removable protective accessory fitted over the mating end of an unmated connector.<\/p><p>The official military specification terminology is generally protective cover, although the terms dust cap, connector cap, and protective cap are also widely used in technical and purchasing contexts.<\/p><p>The primary purpose of the cover is to protect the connector interface when the mating half is not installed. This is the core function of every MIL-DTL-38999 dust cap.<\/p><p>Depending on the design, a protective cover may help protect:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-703752b color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"703752b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>exposed pin or socket contact areas<\/li><li>connector inserts<\/li><li>coupling threads or bayonet interfaces<\/li><li>sealing surfaces<\/li><li>polarization and keying features<\/li><li>conductive mating surfaces<\/li><li>the connector from accidental handling damage<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bd04966 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"bd04966\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Many protective covers also include a chain, rope, ring, or other retention device so that the cap remains attached to the equipment or cable assembly when removed.<\/p><p>A dust cap should be treated as part of the overall connector protection system rather than as a cosmetic accessory. For connectors that are frequently disconnected, stored outdoors, transported between locations, or exposed during maintenance, the correct protective cover can reduce contamination and help maintain a clean mating interface.<\/p><p>For a broader explanation of the connector family, see our <a href=\"https:\/\/aviaelectronics.com\/en\/mil-dtl-38999\/\">MIL-DTL-38999 Connectors Guide<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4e7a14f elementor-widget elementor-widget-heading\" data-id=\"4e7a14f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Why_Do_Unmated_MIL-DTL-38999_Connectors_Need_Protective_Covers\"><\/span>Why Do Unmated MIL-DTL-38999 Connectors Need Protective Covers?<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d55bd0d color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"d55bd0d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>MIL-DTL-38999 connectors are engineered for demanding environmental applications, but an unmated connector does not have the same interface protection as a properly mated connector pair.<\/p><p>Once disconnected, the front of the connector may become exposed to the surrounding environment. A properly selected MIL-DTL-38999 dust cap addresses this exposure directly.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4803311 elementor-widget elementor-widget-heading\" data-id=\"4803311\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Protection_Against_Dust_and_Contamination\"><\/span>Protection Against Dust and Contamination<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-93922a9 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"93922a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Dust, sand, metal particles, fibers, grease, and other debris can enter an exposed connector interface.<\/p><p>Contamination may interfere with mating, damage sealing areas, or accumulate around contacts and inserts. A protective cover creates a physical barrier between the connector interface and the surrounding environment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf2a825 elementor-widget elementor-widget-heading\" data-id=\"cf2a825\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Protection_Against_Moisture\"><\/span>Protection Against Moisture<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ecdbb9 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"1ecdbb9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Rain, condensation, spray, and high humidity can affect exposed electrical interfaces.<\/p><p>A correctly fitted protective cover can help reduce direct exposure to moisture while the connector is not in use. Actual environmental performance depends on the specific cover design, gasket, condition, installation, and applicable specification requirements.<\/p><p>Protective covers should not automatically be assumed to provide a particular IP rating unless that rating has been verified for the complete assembly.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-29beb51 elementor-widget elementor-widget-heading\" data-id=\"29beb51\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Protection_Against_Mechanical_Damage\"><\/span>Protection Against Mechanical Damage<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db8f8fd color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"db8f8fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Exposed connectors can be damaged during transportation, maintenance, equipment installation, or storage.<\/p><p>A protective cover can help shield the interface from:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad97920 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"ad97920\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>accidental impact<\/li><li>dropped tools<\/li><li>contact with surrounding equipment<\/li><li>scratching<\/li><li>deformation of exposed features<\/li><li>damage during cable handling<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1069bbe color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"1069bbe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>This is particularly important for cable-mounted plugs that are frequently disconnected and moved.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e2c7dfc elementor-widget elementor-widget-heading\" data-id=\"e2c7dfc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Protection_of_Coupling_Interfaces\"><\/span>Protection of Coupling Interfaces<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-492548b color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"492548b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The coupling mechanism is critical to proper connector engagement.<\/p><p>Depending on the MIL-DTL-38999 series, the connector may use bayonet, threaded, or breech-type coupling. Dirt or physical damage around these areas may make future mating more difficult.<\/p><p>A protective cover helps keep the coupling interface cleaner while the connector is unmated.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d615bcd elementor-widget elementor-widget-heading\" data-id=\"d615bcd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MIL-DTL-38999_Dust_Cap_Types_by_Series\"><\/span>MIL-DTL-38999 Dust Cap Types by Series<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3a7c5cf color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"3a7c5cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>MIL-DTL-38999 includes four connector series with different coupling mechanisms and interface designs. The correct MIL-DTL-38999 dust cap must therefore be selected for the connector&#8217;s specific series.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-364c3c5 elementor-widget elementor-widget-wd_table\" data-id=\"364c3c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wd_table.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"wd-el-table-wrap wd-reset-all-last\">\n\t\t\t<table class=\"wd-el-table\">\n\t\t\t\t\t\t\t\t\t<thead class=\"text-center\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<tr class=\"wd-table-row elementor-repeater-item-afdabba\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<th class=\"wd-table-cell elementor-repeater-item-6b5c7c6\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t\t<p>Connector Series<\/p>\t\t\t\t\t\t\t\t<\/th>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<th class=\"wd-table-cell elementor-repeater-item-bae4698\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t\t<p>Coupling Type<\/p>\t\t\t\t\t\t\t\t<\/th>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<th class=\"wd-table-cell elementor-repeater-item-8a9b861\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t\t<p>Plug Protective Cover<\/p>\t\t\t\t\t\t\t\t<\/th>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<th class=\"wd-table-cell elementor-repeater-item-91c71e5\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t\t<p>Receptacle Protective Cover<\/p>\t\t\t\t\t\t\t\t<\/th>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr>\n\t\t\t\t\t<\/thead>\n\t\t\t\t\n\t\t\t\t<tbody class=\"text-center\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<tr class=\"wd-table-row elementor-repeater-item-668d27e\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-293fea1\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>MIL-DTL-38999 Series I<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-b75dd1a\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>Bayonet<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-ec3b002\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>MS27501<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-2f381a3\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>MS27502<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr>\n\t\t\t\t\t\t\t\t<tr class=\"wd-table-row elementor-repeater-item-abc3ba4\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-a97920f\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>MIL-DTL-38999 Series II<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-807bd7f\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>Bayonet<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-dc6aa0d\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>MS27510<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-4c9d6b6\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>MS27511<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr>\n\t\t\t\t\t\t\t\t<tr class=\"wd-table-row elementor-repeater-item-2c10ee9\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-2fa3ddd\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>MIL-DTL-38999 Series III<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-21dd3a4\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>Threaded<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-3bea570\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>D38999\/32<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-e293e80\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>D38999\/33<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr>\n\t\t\t\t\t\t\t\t<tr class=\"wd-table-row elementor-repeater-item-c034c72\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-cf7fbe6\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>MIL-DTL-38999 Series IV<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-042d3e7\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>Breech coupling<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-5fe01df\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>D38999\/51<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<td class=\"wd-table-cell elementor-repeater-item-4af086a\" colspan=\"1\" rowspan=\"1\">\n\t\t\t\t\t\t\t\t<p>D38999\/52<\/p>\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr>\n\t\t\t\t<\/tbody>\n\t\t\t<\/table>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c4f7f58 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"c4f7f58\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>These protective-cover families are identified in the MIL-DTL-38999 specification system and its associated specification sheets.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b9fba9d elementor-widget elementor-widget-heading\" data-id=\"b9fba9d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MIL-DTL-38999_Series_I_Dust_Caps\"><\/span>MIL-DTL-38999 Series I Dust Caps<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-861d6ce color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"861d6ce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Series I connectors use bayonet coupling, and the matching MIL-DTL-38999 dust cap must be selected accordingly.<\/p><p>The commonly associated protective cover families are:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db730c9 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"db730c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>MS27501 \u2014 protective cover for a plug<\/li><li>MS27502 \u2014 protective cover for a receptacle<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-03ad375 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"03ad375\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>These covers are selected according to the corresponding Series I connector shell size and the required material, finish, and attachment configuration.<\/p><p>Learn more about the connector family in our [Internal link: MIL-DTL-38999 Series I Guide \\xe2\\x80\\x94 page not yet published].<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-92efe9e elementor-widget elementor-widget-heading\" data-id=\"92efe9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MIL-DTL-38999_Series_II_Dust_Caps\"><\/span>MIL-DTL-38999 Series II Dust Caps<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b49170 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"0b49170\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Series II connectors also use bayonet coupling, but their interface dimensions are different from Series I.<\/p><p>The common protective cover designations are:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f33d624 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"f33d624\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>MS27510 \u2014 protective cover for a plug<\/li><li>MS27511 \u2014 protective cover for a receptacle<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-311d6cc color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"311d6cc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A Series I cover should not be selected for a Series II connector simply because both connector families use bayonet coupling. The cover must match the actual connector series and interface.<\/p><p>Learn more in our [Internal link: MIL-DTL-38999 Series II Guide \\xe2\\x80\\x94 page not yet published].<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5415b84 elementor-widget elementor-widget-heading\" data-id=\"5415b84\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MIL-DTL-38999_Series_III_Dust_Caps\"><\/span>MIL-DTL-38999 Series III Dust Caps<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e42ecd color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"5e42ecd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Series III is one of the most widely used MIL-DTL-38999 configurations and uses a threaded coupling system.<\/p><p>The standard protective cover families are:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4bb93d7 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"4bb93d7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li><a href=\"https:\/\/aviaelectronics.com\/en\/product\/d38999-32w21n\/\">D38999\/32<\/a> \u2014 protective cover for a Series III plug<\/li><li><a href=\"https:\/\/aviaelectronics.com\/en\/product\/d38999-33w15n\/\">D38999\/33<\/a> \u2014 protective cover for a Series III receptacle<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ec661d color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"2ec661d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Series III protective covers are available in configurations defined for the applicable connector interface, shell size, class, and attachment requirement. The D38999\/33 detail specification identifies the receptacle protective cover as a Series III component.<\/p><p>For more information about connector construction and selection, see our [Internal link: MIL-DTL-38999 Series III Guide \\xe2\\x80\\x94 page not yet published].<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9cd6168 elementor-widget elementor-widget-heading\" data-id=\"9cd6168\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MIL-DTL-38999_Series_IV_Dust_Caps\"><\/span>MIL-DTL-38999 Series IV Dust Caps<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-791ef17 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"791ef17\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Series IV connectors use a breech-type coupling interface.<\/p><p>The protective cover families include:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5840ec4 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"5840ec4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>D38999\/51 \u2014 protective cover for a plug<\/li><li>D38999\/52 \u2014 protective cover for a receptacle<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-caf83b9 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"caf83b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Because the Series IV coupling system differs substantially from Series I, II, and III designs, a protective cover specifically intended for the Series IV interface is required. The D38999\/52 detail specification defines the receptacle protective cover for MIL-DTL-38999 Series IV.<\/p><p>Learn more in our [Internal link: MIL-DTL-38999 Series IV Guide \\xe2\\x80\\x94 page not yet published].<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5de1754 elementor-widget elementor-widget-heading\" data-id=\"5de1754\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Plug_Covers_vs_Receptacle_Covers\"><\/span>Plug Covers vs Receptacle Covers<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ce69ec color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"3ce69ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>One of the most common selection mistakes is confusing a plug protective cover with a receptacle protective cover.<\/p><p>The terminology refers to the connector half being protected.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-63138ab e-con-full e-flex e-con e-child\" data-id=\"63138ab\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-8a968e0 e-con-full e-flex e-con e-child\" data-id=\"8a968e0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-942e3f8 elementor-widget elementor-widget-heading\" data-id=\"942e3f8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Plug_Protective_Cover\"><\/span>Plug Protective Cover<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2974645 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"2974645\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A plug protective cover is designed to fit over a connector plug.<\/p><p>Examples include:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d4216cb color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"d4216cb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>MS27501 for Series I plugs<\/li><li>MS27510 for Series II plugs<\/li><li><a href=\"https:\/\/aviaelectronics.com\/en\/product\/d38999-32w21n\/\">D38999\/32<\/a> for Series III plugs<\/li><li>D38999\/51 for Series IV plugs<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e505db4 e-con-full e-flex e-con e-child\" data-id=\"e505db4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-005626e elementor-widget elementor-widget-heading\" data-id=\"005626e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Receptacle_Protective_Cover\"><\/span>Receptacle Protective Cover<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c1b95af color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"c1b95af\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A receptacle protective cover is designed to fit over a connector receptacle.<\/p><p>Examples include:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e7a4a8 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"1e7a4a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>MS27502 for Series I receptacles<\/li><li>MS27511 for Series II receptacles<\/li><li><a href=\"https:\/\/aviaelectronics.com\/en\/product\/d38999-33w15n\/\">D38999\/33<\/a> for Series III receptacles<\/li><li>D38999\/52 for Series IV receptacles<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-57de9f7 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"57de9f7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The distinction is important because the mating geometry is different.<\/p><p>A common purchasing error is to think that a &#8220;plug cover&#8221; means a cover that plugs into a receptacle. In specification terminology, it generally means a protective cover intended for the connector plug itself.<\/p><p>The safest selection method is therefore:<\/p><p>Identify the connector &rarr; determine whether it is a plug or receptacle &rarr; select the protective cover designed for that connector half.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4aed307 elementor-widget elementor-widget-heading\" data-id=\"4aed307\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Common_MIL-DTL-38999_Protective_Cover_Part_Numbers\"><\/span>Common MIL-DTL-38999 Protective Cover Part Numbers<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-08ebc21 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"08ebc21\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The following are the most commonly encountered MIL-designated protective cover families.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-407fe54 e-con-full e-flex e-con e-child\" data-id=\"407fe54\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-94f1bc4 e-con-full e-flex e-con e-child\" data-id=\"94f1bc4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3e9f2e8 elementor-widget elementor-widget-heading\" data-id=\"3e9f2e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MS27501\"><\/span>MS27501<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-59c3cfe color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"59c3cfe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective cover for a MIL-DTL-38999 Series I plug.<\/p><p>Typical selection variables include:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-519d9aa color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"519d9aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>finish<\/li><li>shell size<\/li><li>attachment style<\/li><li>attachment length<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0b9b4f2 e-con-full e-flex e-con e-child\" data-id=\"0b9b4f2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f385da1 elementor-widget elementor-widget-heading\" data-id=\"f385da1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MS27502\"><\/span>MS27502<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6389648 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"6389648\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective cover for a MIL-DTL-38999 Series I receptacle.<\/p><p>The correct version must match the receptacle shell size and required cover configuration.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-887cf74 e-con-full e-flex e-con e-child\" data-id=\"887cf74\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-9539cda e-con-full e-flex e-con e-child\" data-id=\"9539cda\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3ff9846 elementor-widget elementor-widget-heading\" data-id=\"3ff9846\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MS27510\"><\/span>MS27510<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28636f4 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"28636f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective cover for a MIL-DTL-38999 Series II plug.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bfe3669 e-con-full e-flex e-con e-child\" data-id=\"bfe3669\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-24fe484 elementor-widget elementor-widget-heading\" data-id=\"24fe484\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MS27511\"><\/span>MS27511<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74f8060 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"74f8060\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective cover for a MIL-DTL-38999 Series II receptacle.<\/p><p>The MIL-DTL-38999 supplement identifies MS27510 and MS27511 as Series II protective covers for plugs and receptacles respectively.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-71238fa e-con-full e-flex e-con e-child\" data-id=\"71238fa\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-299b0ce e-con-full e-flex e-con e-child\" data-id=\"299b0ce\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2c4faa9 elementor-widget elementor-widget-heading\" data-id=\"2c4faa9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"D3899932\"><\/span>D38999\/32<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4ed0353 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"4ed0353\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective cover for a MIL-DTL-38999 Series III plug. View the <a href=\"https:\/\/aviaelectronics.com\/en\/product\/d38999-32w21n\/\">D38999\/32W21N product page<\/a>.<\/p><p>This is commonly required when a Series III cable plug remains disconnected during storage, servicing, transportation, or equipment downtime.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5f001dd e-con-full e-flex e-con e-child\" data-id=\"5f001dd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-904f3ba elementor-widget elementor-widget-heading\" data-id=\"904f3ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"D3899933\"><\/span>D38999\/33<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-adfed24 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"adfed24\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective cover for a MIL-DTL-38999 Series III receptacle. View the <a href=\"https:\/\/aviaelectronics.com\/en\/product\/d38999-33w15n\/\">D38999\/33W15N product page<\/a>.<\/p><p>It is commonly used on exposed equipment, panel, wall-mount, and jam-nut receptacle interfaces when the mating plug is removed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-95a473d e-con-full e-flex e-con e-child\" data-id=\"95a473d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5e69abb e-con-full e-flex e-con e-child\" data-id=\"5e69abb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1ee4a8e elementor-widget elementor-widget-heading\" data-id=\"1ee4a8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"D3899951\"><\/span>D38999\/51<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3801f53 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"3801f53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective cover for a MIL-DTL-38999 Series IV plug.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5a8385c e-con-full e-flex e-con e-child\" data-id=\"5a8385c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aaf4955 elementor-widget elementor-widget-heading\" data-id=\"aaf4955\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"D3899952\"><\/span>D38999\/52<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2f7143f color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"2f7143f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective cover for a MIL-DTL-38999 Series IV receptacle.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bb48333 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"bb48333\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>When requesting a quotation, providing the exact connector part number is often the fastest way to identify the correct cover.<\/p><p>For example:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ce10077 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"ce10077\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>a Series III receptacle such as a D38999\/20 type generally requires a compatible Series III receptacle protective cover<\/li><li>a Series III plug such as a D38999\/26 type generally requires a compatible Series III plug protective cover<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d757ab color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"9d757ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The shell size and other configuration requirements must still be verified before ordering.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d30ea9b elementor-widget elementor-widget-heading\" data-id=\"d30ea9b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Materials_and_Finishes\"><\/span>Materials and Finishes<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e55bf71 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"e55bf71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective cover material and finish should be considered as carefully as the connector shell itself. Material and finish selection directly affects how well a MIL-DTL-38999 dust cap performs in service.<\/p><p>Depending on the specification sheet, series, class, and manufacturer offering, protective covers may be available in different metallic or composite configurations.<\/p><p>Common material and finish categories include:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4663b24 elementor-widget elementor-widget-heading\" data-id=\"4663b24\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Aluminum_Alloy\"><\/span>Aluminum Alloy<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eee3047 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"eee3047\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Aluminum is widely used because it provides a practical balance of:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8aa2daa color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"8aa2daa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>low weight<\/li><li>mechanical durability<\/li><li>machinability<\/li><li>corrosion protection when correctly finished<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-119b008 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"119b008\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Different surface finishes may be available depending on the applicable cover family.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6cfda12 elementor-widget elementor-widget-heading\" data-id=\"6cfda12\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Electroless_Nickel\"><\/span>Electroless Nickel<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c134817 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"c134817\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Electroless nickel is commonly selected where a conductive metallic finish and good corrosion resistance are required. Read more about this finish in our <a href=\"https:\/\/aviaelectronics.com\/en\/electroless-nickel-plating-processes-properties-and-applications\/\">Electroless Nickel Plating guide<\/a>.<\/p><p>It is also frequently considered for applications where cadmium restrictions or environmental requirements affect finish selection.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db2e903 elementor-widget elementor-widget-heading\" data-id=\"db2e903\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Cadmium-Based_Finishes\"><\/span>Cadmium-Based Finishes<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-643f756 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"643f756\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Cadmium finishes have historically been widely used on high-reliability circular connectors and accessories because of their corrosion resistance and electrical properties.<\/p><p>However, cadmium is subject to environmental and regulatory restrictions in many markets.<\/p><p>When replacing a legacy part, engineers and buyers should verify whether the original finish is mandatory or whether an approved alternative may be used.<\/p><p>Read our [Internal link: Connector Plating and Finishes Guide \\xe2\\x80\\x94 page not yet published] for a detailed comparison.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6374f78 elementor-widget elementor-widget-heading\" data-id=\"6374f78\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Stainless_Steel_or_Corrosion-Resistant_Steel\"><\/span>Stainless Steel or Corrosion-Resistant Steel<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f30ef91 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"f30ef91\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Some protective cover classes may use corrosion-resistant steel for applications requiring additional durability, corrosion performance, or specific environmental characteristics.<\/p><p>The additional weight compared with aluminum should be considered.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-292b488 elementor-widget elementor-widget-heading\" data-id=\"292b488\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Composite_Materials\"><\/span>Composite Materials<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-12d0f63 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"12d0f63\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Composite protective covers may be available for certain connector families where reduced weight and corrosion resistance are priorities.<\/p><p>Availability depends on the applicable specification and product configuration.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-23209b2 elementor-widget elementor-widget-heading\" data-id=\"23209b2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Match_the_Cover_to_the_Application_Not_Just_the_Color\"><\/span>Match the Cover to the Application, Not Just the Color<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9eacc8d color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"9eacc8d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Two covers that look similar may have different:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-02bceaa color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"02bceaa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>base materials<\/li><li>conductive properties<\/li><li>corrosion performance<\/li><li>temperature capabilities<\/li><li>specification status<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c5e959 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"1c5e959\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Do not select a protective cover only because its appearance matches the connector.<\/p><p>The complete material and finish designation should be checked.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-670acad elementor-widget elementor-widget-heading\" data-id=\"670acad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Should_the_Dust_Cap_Finish_Match_the_Connector\"><\/span>Should the Dust Cap Finish Match the Connector?<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-88ac016 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"88ac016\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>In many applications, matching or carefully coordinating the connector and protective cover finish is recommended.<\/p><p>This can help with:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f68a9dc color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"f68a9dc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>material compatibility<\/li><li>corrosion control<\/li><li>electrical continuity requirements<\/li><li>environmental performance<\/li><li>maintenance standardization<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d83f61c color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"d83f61c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>However, an identical visual finish does not automatically guarantee technical compatibility.<\/p><p>Engineers should consider:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8be5c74 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"8be5c74\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>connector shell material<\/li><li>protective cover material<\/li><li>plating or coating<\/li><li>exposure to salt, moisture, chemicals, or industrial contaminants<\/li><li>electrical bonding requirements<\/li><li>applicable regulatory restrictions<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-346bca5 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"346bca5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Dissimilar material combinations can create corrosion concerns in some environments.<\/p><p>When in doubt, provide the full connector part number and application conditions for compatibility review.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-65004b7 elementor-widget elementor-widget-heading\" data-id=\"65004b7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Chain_Rope_Ring_and_Lanyard_Options\"><\/span>Chain, Rope, Ring, and Lanyard Options<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-92d7501 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"92d7501\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A protective cover is often removed during operation or maintenance. Without a retention system, it can easily be lost. This is why many MIL-DTL-38999 dust caps ship with a retention chain or rope.<\/p><p>For this reason, MIL-DTL-38999 dust caps may be supplied with different attachment options depending on the cover family and specification.<\/p><p>Common options include:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b66591a elementor-widget elementor-widget-heading\" data-id=\"b66591a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"No_Attachment\"><\/span>No Attachment<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-631028f color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"631028f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The protective cover is supplied without a chain or retention device.<\/p><p>This may be suitable when:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db9e654 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"db9e654\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>the cover is removed only occasionally<\/li><li>it is stored separately<\/li><li>surrounding equipment cannot accommodate a chain<\/li><li>the installation has its own retention system<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-58be004 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"58be004\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The disadvantage is that loose covers are easier to misplace.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b7a6a92 elementor-widget elementor-widget-heading\" data-id=\"b7a6a92\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Chain_Attachment\"><\/span>Chain Attachment<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-23e9ad2 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"23e9ad2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A chain keeps the protective cover attached to the connector, equipment panel, or cable assembly.<\/p><p>This is one of the most common configurations.<\/p><p>Advantages include:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a77fe70 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"a77fe70\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>reduced risk of losing the cover<\/li><li>faster installation after disconnecting the connector<\/li><li>easier maintenance control<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fbb68c7 elementor-widget elementor-widget-heading\" data-id=\"fbb68c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Chain_with_Ring\"><\/span>Chain with Ring<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab1d5bc color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"ab1d5bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Some configurations use a chain and mounting ring.<\/p><p>This can be useful when the cover must be retained around a receptacle or another fixed mounting area.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-59ed496 elementor-widget elementor-widget-heading\" data-id=\"59ed496\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Rope_or_Flexible_Retention\"><\/span>Rope or Flexible Retention<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d23003b color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"d23003b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Some protective cover designs may use a rope or other flexible retention system instead of a metal chain.<\/p><p>The exact options depend on the protective cover family and applicable specification sheet.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d18ad51 elementor-widget elementor-widget-heading\" data-id=\"d18ad51\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Attachment_Length\"><\/span>Attachment Length<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3bfb53e color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"3bfb53e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Attachment length is an important but often overlooked selection factor.<\/p><p>A chain or rope that is too short may:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-11134b4 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"11134b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>restrict connector access<\/li><li>interfere with mating<\/li><li>pull on the cap<\/li><li>contact nearby equipment<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aa72fe6 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"aa72fe6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>An excessively long attachment may:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-22f4675 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"22f4675\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>snag on surrounding components<\/li><li>create unnecessary movement<\/li><li>interfere with servicing<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7601e10 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"7601e10\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Always check the available installation space before specifying attachment length.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-244981a elementor-widget elementor-widget-heading\" data-id=\"244981a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"How_to_Select_the_Correct_MIL-DTL-38999_Dust_Cap\"><\/span>How to Select the Correct MIL-DTL-38999 Dust Cap<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-918af4e color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"918af4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Selecting the correct MIL-DTL-38999 dust cap requires more than matching the connector diameter.<\/p><p>Use the following process.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-293f02a e-con-full e-flex e-con e-child\" data-id=\"293f02a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-e638ccd e-con-full e-flex e-con e-child\" data-id=\"e638ccd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0455aa1 elementor-widget elementor-widget-heading\" data-id=\"0455aa1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Step_1_Identify_the_Connector_Series\"><\/span>Step 1: Identify the Connector Series<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1dc0743 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"1dc0743\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Determine whether the connector is:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6eeb986 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"6eeb986\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>Series I<\/li><li>Series II<\/li><li>Series III<\/li><li>Series IV<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1c62cc color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"f1c62cc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The coupling interface is different between series.<\/p><p>A cover designed for one series should not be assumed to fit another series.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-717e007 e-con-full e-flex e-con e-child\" data-id=\"717e007\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-619c134 elementor-widget elementor-widget-heading\" data-id=\"619c134\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Step_2_Identify_the_Connector_Half\"><\/span>Step 2: Identify the Connector Half<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4955327 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"4955327\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Determine whether the exposed connector is a:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ac5288c color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"ac5288c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>plug; or<\/li><li>receptacle<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e9062e3 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"e9062e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>This determines whether a plug cover or receptacle cover is required.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-45bd834 e-con-full e-flex e-con e-child\" data-id=\"45bd834\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-17ff9af e-con-full e-flex e-con e-child\" data-id=\"17ff9af\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-56371c7 elementor-widget elementor-widget-heading\" data-id=\"56371c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Step_3_Confirm_the_Shell_Size\"><\/span>Step 3: Confirm the Shell Size<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a87bfd color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"0a87bfd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective covers are manufactured for specific shell sizes.<\/p><p>The shell size of the cover must correspond to the connector interface.<\/p><p>For help identifying connector dimensions, see our [Internal link: Circular Connector Shell Sizes Guide \\xe2\\x80\\x94 page not yet published].<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f03a9b4 e-con-full e-flex e-con e-child\" data-id=\"f03a9b4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-01c5d15 elementor-widget elementor-widget-heading\" data-id=\"01c5d15\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Step_4_Select_the_Material_and_Finish\"><\/span>Step 4: Select the Material and Finish<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5fae8f3 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"5fae8f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Consider:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a22a2cc color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"a22a2cc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>corrosion exposure<\/li><li>weight<\/li><li>conductivity<\/li><li>regulatory restrictions<\/li><li>temperature<\/li><li>compatibility with the connector shell<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-844cb99 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"844cb99\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Do not choose a finish based only on appearance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1c70a70 e-con-full e-flex e-con e-child\" data-id=\"1c70a70\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-fe1da8a e-con-full e-flex e-con e-child\" data-id=\"fe1da8a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a595a3c elementor-widget elementor-widget-heading\" data-id=\"a595a3c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Step_5_Choose_the_Attachment_Method\"><\/span>Step 5: Choose the Attachment Method<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9eaa5b4 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"9eaa5b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Decide whether the application requires:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b607931 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"b607931\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>no attachment<\/li><li>chain<\/li><li>chain with ring<\/li><li>rope<\/li><li>another approved retention configuration<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a0dad36 e-con-full e-flex e-con e-child\" data-id=\"a0dad36\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ddb9e02 elementor-widget elementor-widget-heading\" data-id=\"ddb9e02\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Step_6_Check_Attachment_Length\"><\/span>Step 6: Check Attachment Length<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d81328 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"0d81328\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Confirm that the chain or retention device is long enough for convenient connector access but not so long that it interferes with surrounding equipment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d0b4f20 e-con-full e-flex e-con e-child\" data-id=\"d0b4f20\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-e3e8c25 e-con-full e-flex e-con e-child\" data-id=\"e3e8c25\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a9a82cd elementor-widget elementor-widget-heading\" data-id=\"a9a82cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Step_7_Review_the_Operating_Environment\"><\/span>Step 7: Review the Operating Environment<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53fe4d6 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"53fe4d6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Consider exposure to:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-183c2c4 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"183c2c4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>dust<\/li><li>sand<\/li><li>moisture<\/li><li>salt atmosphere<\/li><li>industrial contaminants<\/li><li>vibration<\/li><li>repeated handling<\/li><li>transportation<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc18623 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"fc18623\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The environment can influence both material selection and retention design.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5e93ec8 e-con-full e-flex e-con e-child\" data-id=\"5e93ec8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7cffc2e elementor-widget elementor-widget-heading\" data-id=\"7cffc2e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Step_8_Confirm_Documentation_Requirements\"><\/span>Step 8: Confirm Documentation Requirements<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d45d51 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"0d45d51\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Determine whether the project requires:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e1cfbd1 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"e1cfbd1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>an exact military part number<\/li><li>specification conformity<\/li><li>QPL sourcing<\/li><li>a manufacturer certificate<\/li><li>inspection documentation<\/li><li>a commercial equivalent<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c213216 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"c213216\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A commercial-style protective cover may be physically compatible without meeting every documentation requirement of a military-specified component.<\/p><p>This distinction should be confirmed before ordering.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-426c489 elementor-widget elementor-widget-heading\" data-id=\"426c489\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Does_Insert_Arrangement_Matter_When_Selecting_a_Dust_Cap\"><\/span>Does Insert Arrangement Matter When Selecting a Dust Cap?<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-043bfa5 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"043bfa5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>In most cases, MIL-DTL-38999 dust cap selection is based primarily on:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5954678 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"5954678\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>connector series<\/li><li>plug or receptacle style<\/li><li>shell size<\/li><li>cover class<\/li><li>attachment configuration<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f9ddfe color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"4f9ddfe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The insert arrangement and contact layout are generally not the main selection criteria because the protective cover interfaces with the connector shell and coupling area rather than mating electrically with the contact arrangement.<\/p><p>The applicable detail specification should still be checked for the exact configuration. For example, the Series IV receptacle cover specification states that protective covers fit receptacles with pin or socket contacts in any polarization position.<\/p><p>This means that two connectors with the same compatible series and shell size may use the same basic protective cover even when their contact arrangements differ.<\/p><p>However, never rely on shell size alone when the connector series is unknown.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4e835ec elementor-widget elementor-widget-heading\" data-id=\"4e835ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"How_to_Read_a_MIL-DTL-38999_Protective_Cover_Part_Number\"><\/span>How to Read a MIL-DTL-38999 Protective Cover Part Number<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-489e561 elementor-widget elementor-widget-heading\" data-id=\"489e561\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MIL-DTL-38999_Series_I_Protective_Cover_Part_Number\"><\/span>MIL-DTL-38999  Series I Protective Cover Part Number<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-558579f elementor-widget elementor-widget-image\" data-id=\"558579f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"716\" height=\"800\" src=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number_16-716x800.webp\" class=\"attachment-large size-large wp-image-40294\" alt=\"MS27501, MS27502 Protective Cover Part number\" srcset=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number_16-716x800.webp 716w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number_16-268x300.webp 268w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number_16-768x858.webp 768w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number_16-1375x1536.webp 1375w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number_16-1833x2048.webp 1833w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number_16-11x12.webp 11w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number_16-430x481.webp 430w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number_16-700x782.webp 700w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number_16-150x168.webp 150w\" sizes=\"(max-width: 716px) 100vw, 716px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">MS27501, MS27502 Protective Cover Part number<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1868eea elementor-widget elementor-widget-image\" data-id=\"1868eea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1090\" height=\"800\" src=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number-1090x800.webp\" class=\"attachment-large size-large wp-image-40293\" alt=\"MS27501, MS27502 Protective Cover Part number\" srcset=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number-1090x800.webp 1090w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number-400x294.webp 400w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number-768x564.webp 768w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number-1536x1128.webp 1536w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number-2048x1504.webp 2048w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number-16x12.webp 16w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number-430x316.webp 430w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number-700x514.webp 700w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/MIL-DTL-38999-\u2160-Series-Connector-Protective-Cover-Part-Number-150x110.webp 150w\" sizes=\"(max-width: 1090px) 100vw, 1090px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">MS27501, MS27502 Protective Cover Part number<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1f8a1e elementor-widget elementor-widget-heading\" data-id=\"f1f8a1e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MIL-DTL-38999_Series_II_Protective_Cover_Part_Number\"><\/span>MIL-DTL-38999  Series II Protective Cover Part Number<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b90b01 elementor-widget elementor-widget-image\" data-id=\"8b90b01\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"873\" height=\"800\" src=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-873x800.webp\" class=\"attachment-large size-large wp-image-40288\" alt=\"MS27510, MS27511 Protective Cover Part number\" srcset=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-873x800.webp 873w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-327x300.webp 327w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-768x704.webp 768w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-1536x1407.webp 1536w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-2048x1876.webp 2048w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-13x12.webp 13w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-430x394.webp 430w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-700x641.webp 700w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-150x137.webp 150w\" sizes=\"(max-width: 873px) 100vw, 873px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">MS27510, MS27511 Protective Cover Part number<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0f19a36 elementor-widget elementor-widget-image\" data-id=\"0f19a36\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"728\" height=\"800\" src=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-1-728x800.webp\" class=\"attachment-large size-large wp-image-40289\" alt=\"MS27510, MS27511 Protective Cover Part number\" srcset=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-1-728x800.webp 728w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-1-273x300.webp 273w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-1-768x844.webp 768w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-1-1398x1536.webp 1398w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-1-1864x2048.webp 1864w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-1-11x12.webp 11w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-1-430x473.webp 430w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-1-700x769.webp 700w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-1-150x165.webp 150w\" sizes=\"(max-width: 728px) 100vw, 728px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">MS27510, MS27511 Protective Cover Part number<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca3f087 elementor-widget elementor-widget-heading\" data-id=\"ca3f087\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"MIL-DTL-38999_Series_III_Protective_Cover_Part_Number\"><\/span>MIL-DTL-38999  Series III Protective Cover Part Number<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1963044 elementor-widget elementor-widget-image\" data-id=\"1963044\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1300\" height=\"793\" src=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-2-1300x793.webp\" class=\"attachment-large size-large wp-image-40290\" alt=\"D38999\/32, D38999\/33 Protective Cover Part number\" srcset=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-2-1300x793.webp 1300w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-2-400x244.webp 400w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-2-768x469.webp 768w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-2-1536x937.webp 1536w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-2-2048x1249.webp 2048w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-2-18x12.webp 18w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-2-430x262.webp 430w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-2-700x427.webp 700w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-2-150x92.webp 150w\" sizes=\"(max-width: 1300px) 100vw, 1300px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">D38999\/32, D38999\/33 Protective Cover Part number<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-89a6adb elementor-widget elementor-widget-image\" data-id=\"89a6adb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1073\" height=\"800\" src=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-3-1073x800.webp\" class=\"attachment-large size-large wp-image-40291\" alt=\"D38999\/32, D38999\/33 Protective Cover Part number\" srcset=\"https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-3-1073x800.webp 1073w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-3-400x298.webp 400w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-3-768x573.webp 768w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-3-1536x1145.webp 1536w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-3-2048x1527.webp 2048w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-3-16x12.webp 16w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-3-430x321.webp 430w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-3-700x522.webp 700w, https:\/\/aviaelectronics.com\/wp-content\/uploads\/2026\/07\/How-to-Read-a-MIL-DTL-38999-Protective-Cover-Part-Number-3-150x112.webp 150w\" sizes=\"(max-width: 1073px) 100vw, 1073px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">D38999\/32, D38999\/33 Protective Cover Part number<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dbabc9a color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"dbabc9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The exact part number format depends on the MIL-DTL-38999 dust cap family.<\/p><p>A typical designation may identify:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ee54025 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"ee54025\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>the specification or MS number<\/li><li>material or finish class<\/li><li>shell size<\/li><li>attachment style<\/li><li>attachment length or configuration<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec206eb color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"ec206eb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>For example, a part number may follow a general structure such as:<\/p><p>Base Number + Finish\/Class + Shell Size + Attachment Option + Length Option<\/p><p>The actual letters and allowed combinations vary by specification sheet.<\/p><p>Do not assume that a finish code used for one cover family has exactly the same meaning or availability in another family.<\/p><p>For accurate decoding:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c28a780 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"c28a780\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>identify the complete part number<\/li><li>find the corresponding specification sheet<\/li><li>verify every code position<\/li><li>check revision status<\/li><li>confirm whether the requested combination is valid<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d758d45 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"d758d45\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>For a broader explanation of military connector numbering systems, see our guide on [Internal link: How to Read MIL-Spec Connector Part Numbers \\xe2\\x80\\x94 page not yet published].<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a4441d3 elementor-widget elementor-widget-heading\" data-id=\"a4441d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Dust_Caps_vs_Backshells_Sealing_Plugs_and_Protective_Boots\"><\/span>Dust Caps vs Backshells, Sealing Plugs, and Protective Boots<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e9dc6d6 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"e9dc6d6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Several connector accessories provide protection, but they serve different purposes. Understanding these differences helps clarify exactly what a MIL-DTL-38999 dust cap is designed to do.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4a55fda e-con-full e-flex e-con e-child\" data-id=\"4a55fda\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-df1b63c e-con-full e-flex e-con e-child\" data-id=\"df1b63c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3ff686a elementor-widget elementor-widget-heading\" data-id=\"3ff686a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Dust_Cap_or_Protective_Cover\"><\/span>Dust Cap or Protective Cover<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a289b91 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"a289b91\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Installed on the front mating interface when the connector is unmated.<\/p><p>Primary purpose:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5b590f2 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"5b590f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>protect the exposed connector interface<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fae8a4a e-con-full e-flex e-con e-child\" data-id=\"fae8a4a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b417cb elementor-widget elementor-widget-heading\" data-id=\"7b417cb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Backshell\"><\/span>Backshell<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f18cc18 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"f18cc18\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Installed on the rear of the connector.<\/p><p>Depending on the design, a backshell may provide:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b12779a color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"b12779a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>cable strain relief<\/li><li>EMI shield termination<\/li><li>environmental protection<\/li><li>cable routing<\/li><li>mechanical support<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-17aef6b color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"17aef6b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A protective cover cannot replace a backshell.<\/p><p>See our <a href=\"https:\/\/aviaelectronics.com\/en\/mil-dtl-38999-series-iii-backshell\/\">MIL-Spec Connector Backshells Guide<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9c2859a e-con-full e-flex e-con e-child\" data-id=\"9c2859a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-c2391f5 e-con-full e-flex e-con e-child\" data-id=\"c2391f5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f3fe819 elementor-widget elementor-widget-heading\" data-id=\"f3fe819\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Sealing_Plug\"><\/span>Sealing Plug<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6083852 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"6083852\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Installed in an unused contact cavity.<\/p><p>Its purpose is to maintain sealing performance around unused cavity positions.<\/p><p>A sealing plug does not protect the entire mating interface.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1d102a8 e-con-full e-flex e-con e-child\" data-id=\"1d102a8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aaf3f8c elementor-widget elementor-widget-heading\" data-id=\"aaf3f8c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Strain_Relief_Boot\"><\/span>Strain Relief Boot<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0257b97 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"0257b97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Installed around the rear cable termination area.<\/p><p>Its purpose may include:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-293a805 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"293a805\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>bend support<\/li><li>strain relief<\/li><li>cable transition protection<\/li><li>environmental sealing<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d438b85 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"d438b85\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A boot does not replace a front protective cover.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-46d3795 elementor-widget elementor-widget-heading\" data-id=\"46d3795\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Dummy_Stowage_Receptacle\"><\/span>Dummy Stowage Receptacle<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-275d168 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"275d168\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Provides a storage position for a disconnected plug.<\/p><p>A stowage receptacle is different from a simple protective cover because it provides a dedicated mechanical storage interface for the cable connector.<\/p><p>Choosing the correct accessory depends on which part of the connector system needs protection.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a37a6a9 elementor-widget elementor-widget-heading\" data-id=\"a37a6a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Typical_Applications\"><\/span>Typical Applications<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-683899f color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"683899f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>MIL-DTL-38999 dust caps are commonly used wherever connectors may remain temporarily or repeatedly unmated.<\/p><p>Typical applications include:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f5a8a6f elementor-widget elementor-widget-heading\" data-id=\"f5a8a6f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Aircraft_and_Aerospace_Systems\"><\/span>Aircraft and Aerospace Systems<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc2af27 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"fc2af27\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective covers may be used during:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5fe5ce6 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"5fe5ce6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>aircraft maintenance<\/li><li>equipment replacement<\/li><li>ground servicing<\/li><li>system integration<\/li><li>transportation and storage<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c30d4e elementor-widget elementor-widget-heading\" data-id=\"5c30d4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Communication_and_Electronic_Equipment\"><\/span>Communication and Electronic Equipment<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a83c47 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"0a83c47\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>External or panel-mounted connectors may remain disconnected when optional equipment is not installed.<\/p><p>A protective cover helps keep the interface protected until the connection is required.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74728aa elementor-widget elementor-widget-heading\" data-id=\"74728aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Rail_and_Transportation_Equipment\"><\/span>Rail and Transportation Equipment<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6530c00 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"6530c00\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Connectors used on vehicles and infrastructure may be exposed during inspection, maintenance, or equipment replacement.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f9bcf4 elementor-widget elementor-widget-heading\" data-id=\"6f9bcf4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Marine_and_Offshore_Equipment\"><\/span>Marine and Offshore Equipment<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e306bbc color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"e306bbc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Salt, moisture, and contamination can make correct material and finish selection particularly important.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be0db17 elementor-widget elementor-widget-heading\" data-id=\"be0db17\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Industrial_Automation\"><\/span>Industrial Automation<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8473819 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"8473819\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Portable machines, test equipment, sensors, and modular production systems may use connectors that are frequently connected and disconnected.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-413eeff elementor-widget elementor-widget-heading\" data-id=\"413eeff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Test_and_Measurement_Systems\"><\/span>Test and Measurement Systems<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aac8830 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"aac8830\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Protective covers can help protect unused test ports and temporary cable interfaces between test cycles.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-99a90c4 elementor-widget elementor-widget-heading\" data-id=\"99a90c4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Ground_Support_Equipment\"><\/span>Ground Support Equipment<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-564a628 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"564a628\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Equipment stored or operated in outdoor environments can benefit from protective covers on unused connector interfaces.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d0c8c85 elementor-widget elementor-widget-heading\" data-id=\"d0c8c85\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Installation_and_Maintenance\"><\/span>Installation and Maintenance<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c485b16 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"c485b16\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Even the correct MIL-DTL-38999 dust cap cannot perform properly if it is damaged, contaminated, or incorrectly installed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b67113 elementor-widget elementor-widget-heading\" data-id=\"7b67113\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Inspect_the_Connector_First\"><\/span>Inspect the Connector First<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e0fbbfa color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"e0fbbfa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Before installing the cover:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b7f26c color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"7b7f26c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>check the connector interface for debris<\/li><li>remove visible contamination using an approved method<\/li><li>inspect threads or bayonet features<\/li><li>check sealing surfaces<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-65e9d82 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"65e9d82\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Do not trap excessive contamination inside the cover.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d8cfcbb elementor-widget elementor-widget-heading\" data-id=\"d8cfcbb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Inspect_the_Gasket_or_Sealing_Element\"><\/span>Inspect the Gasket or Sealing Element<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c116732 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"c116732\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Where the cover design includes a gasket or sealing element, inspect it for:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3065527 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"3065527\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>cuts<\/li><li>permanent deformation<\/li><li>cracking<\/li><li>contamination<\/li><li>missing sections<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d0e154e color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"d0e154e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A damaged gasket can reduce the protective effectiveness of the cover.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9e211a5 elementor-widget elementor-widget-heading\" data-id=\"9e211a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Fully_Engage_the_Cover\"><\/span>Fully Engage the Cover<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fcc920b color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"fcc920b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The cover should be installed according to its coupling design.<\/p><p>Avoid:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-05452f0 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"05452f0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>cross-threading<\/li><li>incomplete bayonet engagement<\/li><li>forced installation<\/li><li>incorrect alignment<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e1c9fdf elementor-widget elementor-widget-heading\" data-id=\"e1c9fdf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Inspect_the_Chain_or_Retention_Device\"><\/span>Inspect the Chain or Retention Device<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-172e9a5 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"172e9a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Check for:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-df4473b color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"df4473b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>broken links<\/li><li>corrosion<\/li><li>loose attachment points<\/li><li>excessive wear<\/li><li>interference with surrounding equipment<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3371b46 elementor-widget elementor-widget-heading\" data-id=\"3371b46\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Keep_the_Inside_of_the_Cover_Clean\"><\/span>Keep the Inside of the Cover Clean<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-84a8f07 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"84a8f07\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A contaminated protective cover can transfer dirt directly to the connector interface.<\/p><p>When removed, avoid placing the open side of the cap on dirty work surfaces.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-608ea1d elementor-widget elementor-widget-heading\" data-id=\"608ea1d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Common_MIL-DTL-38999_Dust_Cap_Selection_Mistakes\"><\/span>Common MIL-DTL-38999 Dust Cap Selection Mistakes<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f897aa2 elementor-widget elementor-widget-heading\" data-id=\"f897aa2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Mistake_1_Choosing_by_Diameter_Only\"><\/span>Mistake 1: Choosing by Diameter Only<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7dc2325 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"7dc2325\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Two covers can appear similar in size but use different coupling interfaces.<\/p><p>Always verify the connector series.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1bf4c04 elementor-widget elementor-widget-heading\" data-id=\"1bf4c04\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Mistake_2_Confusing_Plug_and_Receptacle_Covers\"><\/span>Mistake 2: Confusing Plug and Receptacle Covers<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d96799 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"9d96799\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A plug cover and receptacle cover are not interchangeable.<\/p><p>Identify the connector half before ordering.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9b7009f elementor-widget elementor-widget-heading\" data-id=\"9b7009f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Mistake_3_Ignoring_Shell_Size\"><\/span>Mistake 3: Ignoring Shell Size<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca3a678 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"ca3a678\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The cover must match the connector shell size.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f0fcc2 elementor-widget elementor-widget-heading\" data-id=\"8f0fcc2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Mistake_4_Selecting_by_Color\"><\/span>Mistake 4: Selecting by Color<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d64e186 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"d64e186\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Olive drab, silver, black, or other appearances do not fully identify the base material or finish.<\/p><p>Check the complete designation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c5b23c4 elementor-widget elementor-widget-heading\" data-id=\"c5b23c4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Mistake_5_Forgetting_the_Attachment_Requirement\"><\/span>Mistake 5: Forgetting the Attachment Requirement<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8dd6c34 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"8dd6c34\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A cap without a chain may be acceptable in storage but inconvenient on field equipment.<\/p><p>Consider how frequently the connector is disconnected.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9014f2b elementor-widget elementor-widget-heading\" data-id=\"9014f2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Mistake_6_Ignoring_Chain_Length\"><\/span>Mistake 6: Ignoring Chain Length<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ff771d9 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"ff771d9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A chain that interferes with the mating plug or surrounding equipment can create installation problems.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d53e57f elementor-widget elementor-widget-heading\" data-id=\"d53e57f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Mistake_7_Assuming_All_Compatible_Parts_Have_the_Same_Compliance_Status\"><\/span>Mistake 7: Assuming All Compatible Parts Have the Same Compliance Status<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31de1e9 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"31de1e9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A commercial equivalent may fit the connector without carrying the same qualification, marking, or documentation as a specified military part.<\/p><p>Define compliance requirements before purchasing.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a054037 elementor-widget elementor-widget-heading\" data-id=\"a054037\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Mistake_8_Treating_a_Dust_Cap_as_a_Backshell\"><\/span>Mistake 8: Treating a Dust Cap as a Backshell<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f869258 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"f869258\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A dust cap protects the unmated front interface.<\/p><p>It does not provide rear cable support, EMI termination, or strain relief.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be2f790 elementor-widget elementor-widget-heading\" data-id=\"be2f790\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Information_to_Provide_When_Requesting_a_Quote\"><\/span>Information to Provide When Requesting a Quote<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79eed4a color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"79eed4a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>For the fastest and most accurate MIL-DTL-38999 dust cap selection, provide as much of the following information as possible:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-118e4cf color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"118e4cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>complete connector part number<\/li><li>connector series<\/li><li>plug or receptacle<\/li><li>shell size<\/li><li>preferred material and finish<\/li><li>attachment type<\/li><li>required attachment length<\/li><li>quantity<\/li><li>operating environment<\/li><li>documentation or compliance requirements<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-826c1c1 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"826c1c1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The complete mating connector part number is especially useful.<\/p><p>For example, instead of requesting only:<\/p><p>&#8220;Need D38999 dust cap.&#8221;<\/p><p>provide:<\/p><p>&#8220;Need a protective cover for D38999\/20 connector, shell size 15, electroless nickel finish, with chain.&#8221;<\/p><p>This gives the supplier enough information to review the correct protective cover family and configuration.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4fc86a2 elementor-widget elementor-widget-heading\" data-id=\"4fc86a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Why_Choose_AVIA_for_MIL-DTL-38999_Protective_Covers\"><\/span>Why Choose AVIA for MIL-DTL-38999 Protective Covers?<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ad2c1c color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"8ad2c1c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>AVIA supplies circular connector accessories for aerospace, transportation, communication, industrial, marine, and other high-reliability applications, including MIL-DTL-38999 dust caps for every connector series.<\/p><p>Our MIL-DTL-38999 accessory support includes:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c9082e color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"0c9082e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>plug protective covers<\/li><li>receptacle protective covers<\/li><li>different shell sizes<\/li><li>multiple material and finish options<\/li><li>chain and retention configurations<\/li><li>backshells<\/li><li>sealing accessories<\/li><li>strain-relief solutions<\/li><li>related circular connector components<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-80d418a color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"80d418a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>We can help customers review requirements based on:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c48947 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"0c48947\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>an existing connector part number<\/li><li>a legacy drawing<\/li><li>a specification designation<\/li><li>required material and finish<\/li><li>environmental conditions<\/li><li>target quantity<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e909141 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"e909141\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>For replacement projects, provide the original connector or protective cover part number whenever possible.<\/p><p>For new designs, our team can help review connector series, shell size, finish, attachment, and related accessory requirements.<\/p><p>Need help selecting a MIL-DTL-38999 dust cap? Send us your connector part number, shell size, required finish, and quantity for review. [Internal link: Contact our team for a quote \\xe2\\x80\\x94 page not yet published]<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b3e6a3 elementor-widget elementor-widget-heading\" data-id=\"3b3e6a3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-09635f0 elementor-widget elementor-widget-heading\" data-id=\"09635f0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"What_is_the_difference_between_a_dust_cap_and_a_protective_cover\"><\/span>What is the difference between a dust cap and a protective cover?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-58f83c0 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"58f83c0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>For a MIL-DTL-38999 dust cap, protective cover is the more formal specification terminology used in documentation.<\/p><p>Dust cap is a widely used industry term for the same general type of accessory.<\/p><p>For product searches and customer communication, both terms are useful.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d70e74a elementor-widget elementor-widget-heading\" data-id=\"d70e74a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Are_MIL-DTL-38999_dust_caps_required\"><\/span>Are MIL-DTL-38999 dust caps required?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fdb908e color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"fdb908e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The requirement depends on the equipment design, maintenance process, environment, and applicable specification.<\/p><p>Protective covers are especially useful when connectors remain unmated and exposed to contamination, moisture, handling, or transportation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-beb113e elementor-widget elementor-widget-heading\" data-id=\"beb113e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Which_protective_cover_fits_a_D3899920_receptacle\"><\/span>Which protective cover fits a D38999\/20 receptacle?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-850f816 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"850f816\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>D38999\/20 is a Series III receptacle style.<\/p><p>A compatible Series III receptacle protective cover is generally selected from the <a href=\"https:\/\/aviaelectronics.com\/en\/product\/d38999-33w15n\/\">D38999\/33<\/a> family, with the correct shell size, class, and attachment configuration.<\/p><p>The complete connector part number should be checked before ordering.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc60c2c elementor-widget elementor-widget-heading\" data-id=\"bc60c2c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Which_protective_cover_fits_a_D3899926_plug\"><\/span>Which protective cover fits a D38999\/26 plug?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-66b8013 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"66b8013\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>D38999\/26 is a Series III plug style.<\/p><p>A compatible Series III plug protective cover is generally selected from the <a href=\"https:\/\/aviaelectronics.com\/en\/product\/d38999-32w21n\/\">D38999\/32<\/a> family.<\/p><p>The shell size and other configuration requirements must match.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f68e4dc elementor-widget elementor-widget-heading\" data-id=\"f68e4dc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Can_a_Series_I_dust_cap_fit_a_Series_II_connector\"><\/span>Can a Series I dust cap fit a Series II connector?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d22c4fa color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"d22c4fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Do not assume that it can.<\/p><p>Although Series I and Series II connectors both use bayonet coupling, they use different interface designs and different protective cover families.<\/p><p>Series I commonly uses MS27501 and MS27502.<\/p><p>Series II commonly uses MS27510 and MS27511.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32d0bf4 elementor-widget elementor-widget-heading\" data-id=\"32d0bf4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Does_the_insert_arrangement_affect_dust_cap_selection\"><\/span>Does the insert arrangement affect dust cap selection?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c0faa04 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"c0faa04\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Usually, the most important factors are the connector series, connector type, shell size, class, and attachment configuration.<\/p><p>The dust cap interfaces with the connector shell rather than electrically mating with the contact arrangement.<\/p><p>Always verify the applicable specification sheet for the exact configuration.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f2f712 elementor-widget elementor-widget-heading\" data-id=\"5f2f712\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Should_the_dust_cap_finish_match_the_connector_finish\"><\/span>Should the dust cap finish match the connector finish?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e309cc1 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"e309cc1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Matching or carefully coordinating materials and finishes is generally recommended, particularly where corrosion, conductivity, or environmental exposure is important.<\/p><p>However, the correct combination should be based on technical compatibility rather than color alone.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44aca97 elementor-widget elementor-widget-heading\" data-id=\"44aca97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Are_MIL-DTL-38999_dust_caps_waterproof\"><\/span>Are MIL-DTL-38999 dust caps waterproof?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-49902b8 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"49902b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A correctly fitted protective cover can help protect an unmated connector from moisture and contamination.<\/p><p>However, do not assume a specific waterproof or IP rating unless it has been verified for the exact protective cover and connector assembly.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d60749 elementor-widget elementor-widget-heading\" data-id=\"8d60749\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Can_one_dust_cap_fit_multiple_MIL-DTL-38999_series\"><\/span>Can one dust cap fit multiple MIL-DTL-38999 series?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ea488fb color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"ea488fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Generally, no.<\/p><p>Series I, II, III, and IV use different connector interfaces and protective cover families.<\/p><p>Always identify the connector series first.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a1d996 elementor-widget elementor-widget-heading\" data-id=\"7a1d996\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Do_protective_covers_come_with_chains\"><\/span>Do protective covers come with chains?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fedb393 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"fedb393\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Many configurations are available with chains or other retention systems.<\/p><p>Depending on the protective cover family, options may include:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc525a0 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"cc525a0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>no attachment<\/li><li>chain<\/li><li>chain with ring<\/li><li>rope<\/li><li>other approved retention configurations<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7656358 elementor-widget elementor-widget-heading\" data-id=\"7656358\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"How_do_I_find_the_correct_dust_cap_for_an_unknown_connector\"><\/span>How do I find the correct dust cap for an unknown connector?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-66a72a9 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"66a72a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Start by identifying:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f09fb4f color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"f09fb4f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>the connector part number<\/li><li>connector series<\/li><li>plug or receptacle style<\/li><li>shell size<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4b2a7fd color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"4b2a7fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>If the part number cannot be read, provide clear photographs of:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38a99cc color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"38a99cc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>the front interface<\/li><li>the side profile<\/li><li>the coupling mechanism<\/li><li>all visible markings<\/li><li>the approximate dimensions<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bed0d29 elementor-widget elementor-widget-heading\" data-id=\"bed0d29\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Related_Guides%E2%80%8B\"><\/span>Related Guides\u200b<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-93c8685 e-con-full e-flex e-con e-child\" data-id=\"93c8685\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-2d16836 e-con-full e-flex e-con e-child\" data-id=\"2d16836\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ec213cb elementor-widget elementor-widget-heading\" data-id=\"ec213cb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Related_Connector_Standards\"><\/span>Related Connector Standards<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-024f36d elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"024f36d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/aviaelectronics.com\/en\/mil-dtl-38999-series-iii-backshell\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">MIL-DTL-38999 Connectors<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">MIL-DTL-26482 Connectors<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/aviaelectronics.com\/en\/mil-dtl-5015\/\" target=\"_blank\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">MIL-DTL-83513 Micro-D Connectors<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1d879b2 e-con-full e-flex e-con e-child\" data-id=\"1d879b2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-49e6a0e elementor-widget elementor-widget-heading\" data-id=\"49e6a0e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Comparison_Guides\"><\/span>Comparison Guides<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c09486e elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"c09486e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">MIL-DTL-38999 vs MIL-DTL-5015<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">MIL-DTL-5015 vs MIL-DTL-26482<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/aviaelectronics.com\/en\/mil-dtl-5015\/\" target=\"_blank\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">MIL-DTL-5015 vs MIL-DTL-22992<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d21355f elementor-widget elementor-widget-heading\" data-id=\"d21355f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Related_Guides\"><\/span>Related Guides<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c8e9dae e-con-full e-flex e-con e-child\" data-id=\"c8e9dae\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-27e7fe4 e-con-full e-flex e-con e-child\" data-id=\"27e7fe4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7f5ef72 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"7f5ef72\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">How to Read MIL-Spec Connector Part Numbers<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Circular Connector Shell Sizes<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/aviaelectronics.com\/en\/mil-dtl-5015\/\" target=\"_blank\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Connector Insert Arrangements<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3c15fb2 e-con-full e-flex e-con e-child\" data-id=\"3c15fb2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ea088d6 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"ea088d6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Pin vs Socket Contacts<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Connector Plating and Finishes<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/aviaelectronics.com\/en\/mil-dtl-5015\/\" target=\"_blank\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" class=\"icon\" viewBox=\"0 0 1024 1024\" width=\"200\" height=\"200\"><path d=\"M662.528 205.312H251.904c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h410.624c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-107.52 273.408H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h302.592c15.36 0 28.16-12.8 28.16-28.16s-12.8-28.16-28.16-28.16z m-146.432 272.896H252.416c-15.36 0-28.16 12.8-28.16 28.16s12.8 28.16 28.16 28.16h156.16c15.36 0 28.16-12.8 28.16-28.16-0.512-15.36-12.8-28.16-28.16-28.16z\" fill=\"#4DA0F3\"><\/path><path d=\"M923.648 136.704c-43.008-5.632-76.8-8.704-93.696-9.728v-35.328c0-33.792-27.648-61.44-61.44-61.44H137.216c-33.792 0-61.44 27.648-61.44 61.44v837.12c0 33.792 27.648 61.44 61.44 61.44h609.792l69.632 10.24s45.568 1.536 62.464-41.984c16.896-43.52 102.912-748.032 102.912-748.032s4.608-65.536-58.368-73.728z m-151.552 782.336c0 8.192-6.656 14.336-14.336 14.336H148.48c-8.192 0-14.336-6.656-14.336-14.336v-819.2c0-8.192 6.656-14.336 14.336-14.336h609.28c8.192 0 14.336 6.656 14.336 14.336v819.2z m148.992-679.424l-91.136 666.112V194.56c34.816 2.048 89.088 6.144 92.672 12.8 3.584 6.656-1.536 32.256-1.536 32.256z\" fill=\"#5E6670\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">MIL-Spec Connector Backshells<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>\u0417\u0430\u0449\u0438\u0442\u043d\u044b\u0439 \u043a\u043e\u043b\u043f\u0430\u0447\u043e\u043a MIL-DTL-38999. \u0417\u0430\u0449\u0438\u0442\u043d\u044b\u0435 \u043a\u043e\u043b\u043f\u0430\u0447\u043a\u0438 MIL-DTL-38999, \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043d\u0430\u0437\u044b\u0432\u0430\u0435\u043c\u044b\u0435 \u0437\u0430\u0449\u0438\u0442\u043d\u044b\u043c\u0438 \u043a\u0440\u044b\u0448\u043a\u0430\u043c\u0438, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u044b \u0434\u043b\u044f \u0437\u0430\u0449\u0438\u0442\u044b \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u0441\u043e\u043f\u0440\u044f\u0433\u0430\u0435\u043c\u043e\u0433\u043e \u043a\u043e\u043d\u0442\u0430\u043a\u0442\u0430.<\/p>","protected":false},"author":1,"featured_media":37890,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[876],"tags":[],"class_list":["post-40261","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product-news"],"_links":{"self":[{"href":"https:\/\/aviaelectronics.com\/ru\/wp-json\/wp\/v2\/posts\/40261","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aviaelectronics.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aviaelectronics.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aviaelectronics.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aviaelectronics.com\/ru\/wp-json\/wp\/v2\/comments?post=40261"}],"version-history":[{"count":0,"href":"https:\/\/aviaelectronics.com\/ru\/wp-json\/wp\/v2\/posts\/40261\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aviaelectronics.com\/ru\/wp-json\/wp\/v2\/media\/37890"}],"wp:attachment":[{"href":"https:\/\/aviaelectronics.com\/ru\/wp-json\/wp\/v2\/media?parent=40261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aviaelectronics.com\/ru\/wp-json\/wp\/v2\/categories?post=40261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aviaelectronics.com\/ru\/wp-json\/wp\/v2\/tags?post=40261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}