D38999/26WG35SN + M85049/38-21W | AVIA Electronics
Explore the D38999/26WG35SN circular connector with M85049/38-21W backshell. View MIL-DTL-38999 Series III specifications and request a quote from AVIA Electronics.
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Product Overview
The D38999/26WG35SN + M85049/38-21W is a high-reliability circular connector assembly designed for demanding aerospace, industrial, and high-performance electronic applications. Combining a MIL-DTL-38999 Series III straight plug connector with a compatible backshell, this assembly supports secure electrical connections, cable strain relief, and dependable operation in environments exposed to vibration, mechanical stress, and temperature variations.
The D38999/26WG35SN belongs to the MIL-DTL-38999 Series III family of circular connectors associated with MIL-DTL-38999 specifications. This connector features a triple-start threaded coupling system, a 21-35 insert arrangement, and socket contacts. The M85049/38-21W straight strain-relief backshell is designed to provide cable support and help reduce mechanical stress at the connector termination. Exact mechanical compatibility and installation requirements should be verified against the applicable datasheets.
With its rugged construction and integrated cable-support solution, the D38999/26WG35SN + M85049/38-21W assembly is suitable for aerospace equipment, industrial automation, communication systems, and other applications requiring reliable electrical connectivity. Please consult the relevant product datasheets to confirm the connector’s shell size, contact arrangement, socket configuration, coupling interface, surface finish, and compatibility with the M85049/38-21W backshell before installation.
Part Number Breakdown
Stock & Availability
In Stock / Factory Lead Time
At AVIA Electronics, we help customers plan procurement and delivery schedules for the D38999/26WG35SN + M85049/38-21W connector assembly and our broader range of high-reliability interconnect solutions. Our team confirms component availability, lead times, and shipping arrangements before order confirmation to help you coordinate production, maintenance, and project milestones.
In-Stock (Ready to Ship): Contact us to verify current inventory of the D38999/26WG35SN connector and M85049/38-21W backshell. For confirmed in-stock orders, dispatch is typically arranged within 24–48 business hours after order and payment confirmation, subject to component availability, assembly requirements, and shipping arrangements.
Factory Lead Time: For production orders or larger quantities of the D38999/26WG35SN + M85049/38-21W assembly, we provide an estimated lead time based on order quantity, component availability, production capacity, and any required assembly operations. The expected delivery schedule is confirmed with your quotation and updated if circumstances change.
Supply Planning: For recurring purchases, bulk orders, or phased projects, we can discuss scheduled shipments, batch deliveries, and buffer-stock arrangements for both the connector and backshell. Availability, quantities, assembly requirements, and delivery dates are agreed upon before order confirmation.
Request a Quote Today: Send AVIA Electronics your required quantity, target delivery date, destination, and any specific assembly requirements. Our sales team will check component availability and provide a quotation with pricing, estimated lead time, and shipping options. Contact us today to request pricing and confirm the delivery schedule for the D38999/26WG35SN + M85049/38-21W connector assembly.
Multiple shell sizes available
The D38999/26WG35SN + M85049/38-21W is a high-reliability MIL-DTL-38999 Series III circular connector assembly designed for demanding aerospace, industrial, and electronic applications. Combining a straight plug connector with socket contacts and a strain-relief backshell, this assembly supports secure electrical connections, cable protection, and dependable performance in environments exposed to vibration, mechanical stress, and temperature variations.
Model-Specific Configuration: The D38999/26WG35SN features a 21-35 insert arrangement with socket contacts and normal keying orientation. Paired with the M85049/38-21W straight strain-relief backshell, this configuration is intended to support reliable electrical interconnections and cable management. Consult the applicable datasheets to verify contact quantity, contact sizes, electrical ratings, and mechanical compatibility.
Secure Threaded Coupling: The MIL-DTL-38999 Series III triple-start threaded coupling mechanism provides secure mating and helps prevent accidental disconnection under vibration. Confirm the mating connector, keying position, and coupling compatibility before installation.
Cable Strain Relief & Environmental Performance: The M85049/38-21W backshell provides mechanical cable support and helps reduce stress at the connector termination. The connector assembly is intended for demanding operating environments, but shell finish, sealing performance, operating temperature, cable diameter compatibility, and applicable qualification requirements should be verified against the relevant product datasheets.
Source Your D38999/26WG35SN + M85049/38-21W Assembly from AVIA Electronics: Contact AVIA Electronics for connector and backshell sourcing, configuration verification, and procurement support. Whether you need engineering samples, small quantities, or bulk production orders, our team can help confirm component availability, mating compatibility, pricing, and estimated lead times. Send us your required quantity, technical specifications, and delivery destination to receive a tailored quotation and discuss reliable supply options for your project.
Custom configurations supported
At AVIA Electronics, we understand that standard connector configurations may not meet every project’s requirements. For the D38999/26WG35SN + M85049/38-21W connector assembly, we provide technical support to help customers verify connector and backshell compatibility, identify suitable accessories, and coordinate reliable sourcing solutions based on their application needs.
Contact Configuration Selection: Our team can help verify the D38999/26WG35SN socket contact arrangement, electrical requirements, and mating compatibility to support reliable integration into your equipment.
Shell Materials & Surface Finishes: Depending on availability and technical feasibility, we can help evaluate suitable connector shell materials and surface finishes based on corrosion resistance, electromagnetic compatibility, environmental conditions, and weight requirements.
Backshell & Mechanical Integration: We can assist in verifying the compatibility of the M85049/38-21W straight strain-relief backshell with the D38999/26WG35SN connector, including attachment interfaces, cable diameter requirements, and installation considerations.
Accessory Sourcing & Kitting: AVIA Electronics can coordinate the supply of D38999/26WG35SN connectors, M85049/38-21W backshells, protective caps, and other compatible accessories. Component sourcing, matched sets, and kitting services are available for discussion, subject to availability and compatibility verification.
Request Technical Support & a Quotation: Source your D38999/26WG35SN + M85049/38-21W connector assembly through AVIA Electronics. Send us your part numbers, technical drawings, required quantity, cable specifications, and target delivery date. Our team will help verify component compatibility, confirm availability, and provide competitive pricing, estimated lead times, and suitable supply options for engineering samples, small orders, or bulk procurement.
Sample Policy & Flexible Order Support
At AVIA Electronics, we support engineering evaluations, prototype development, and system integration testing with sampling options for the D38999/26WG35SN + M85049/38-21W connector assembly, subject to component availability and compatibility verification.
Sample Availability: Contact us to confirm sample availability for the D38999/26WG35SN connector and M85049/38-21W strain-relief backshell. Our team can provide pricing, availability information, and estimated dispatch schedules to support your engineering evaluation.
Flexible Order Quantities: We support prototype testing, small-quantity purchases, and larger procurement requirements. Whether you need individual components or matched connector and backshell sets, our team can discuss suitable ordering options, with minimum order quantities confirmed upon request.
Secure Shipping: AVIA Electronics coordinates appropriate packaging and international shipping arrangements to help protect connectors and accessories during transportation. Available shipping methods, estimated dispatch dates, and delivery times are confirmed during order processing.
Request a Sample Today: Contact AVIA Electronics with the D38999/26WG35SN + M85049/38-21W part numbers, required quantity, cable specifications, delivery destination, and project requirements. Our team will help verify component compatibility, confirm sample availability, and provide a competitive quotation with estimated lead times and shipping options. Whether you require samples for prototype validation or reliable supply for future production, AVIA Electronics is ready to support your connector procurement needs.
Logistics & Distribution Services
AVIA Electronics utilizes a reliable distribution framework to ensure the secure and accurate delivery of components to global destinations. Shipping options available for your order are calculated and displayed during the checkout process based on your specific requirements.
Supported Carriers & Services
We partner with established logistics providers to offer a range of delivery solutions:
Express Carriers: DHL, UPS, FedEx, SF Express
Postal & Standard Services: Belgium Post, Global Direct Standard Line, Registered Mail
Shipping Cost Calculation
Shipping charges are dynamically calculated at checkout to ensure accuracy. The final cost is determined by the following variables:
Package Weight: The total combined weight of the products and necessary protective packaging.
Service Selection: Costs vary depending on the chosen carrier and the selected service level (e.g., expedited express vs. standard delivery).
Destination: Rates are adjusted based on the specific country or region of delivery.
Technical Specifications
Basic Info.
|
Model NO. |
D38999/26WG35SN + M85049/38-21W |
|---|---|
|
Application |
Industrial Automation |
|
Contact Material |
Copper |
|
Shell Material |
Aluminum alloy |
|
Shell Size |
21 |
|
Termination Style |
Crimp |
|
Contact Plating |
Gold |
|
Transport Package |
Standard Expect Package |
|
Origin |
China |
|
Production Capacity |
100000 |
|
Certification |
ISO 9001, ISO 14001, ISO 45001, CE, RoHS, REACH, IP68, 500-Hour Salt Spray Tested |
|---|---|
|
Contact Resistance |
≤ 12.0(mΩ) |
|
Surface Treatment |
Olive green cadmium plating |
|
Processing and Customization |
OEM/ODM |
|
Shell Style |
Plug |
|
Mounting Style |
Plug |
|
Mating Style |
Triple-Start Threaded Coupling |
|
Grommet and seal |
Silicon rubber |
|
Endurance |
500 cycles |
|
Trademark |
AVIA |
|
HS Code |
8536901100 |
Packaging & Weight
|
Package Size |
41.00cm * 31.00cm * 30.00cm |
|---|---|
|
Package Gross Weight |
100g |
Mechanical Specifications
Vibration
|
Sine |
60g, with temperature cycling and simulated accessory (36 hours) |
|---|---|
|
Random |
44.1 grms in high temperature 49.5 grms in ambient temperature |
|
Shock |
At 3 ms half sinusoid, peak value of acceleration: 300g |
Contact Retention
|
22D# |
45N |
|---|---|
|
20# |
67N |
|
16# |
111N |
|
12# |
111N |
|
10# |
111N |
|
8 # |
111N |
Electrical Performance
Voltage rating (V)
|
Package Size |
M |
N |
I |
II |
|---|---|---|---|---|
|
Sea level |
1300 |
1000 |
1800 |
2300 |
|
21000M |
800 |
600 |
1000 |
1000 |
Contact resistance and rated current
|
Contact Size |
Diameter (mm) |
Resistance (mΩ) |
Current (A) |
|---|---|---|---|
|
22D# |
Φ 0.76 |
≤ 12.0 |
5.0 |
|
20# |
Φ 1.00 |
≤ 5.0 |
7.5 |
|
16# |
Φ 1.60 |
≤ 2.5 |
13.0 |
|
12# |
Φ 2.40 |
≤ 1.5 |
23.0 |
|
10# |
Φ 3.15 |
≤ 1.0 |
40.0 |
Environmental Performance
Operating temperature
|
W class |
-65 oC ~ +175 oC |
|---|---|
|
K, F class |
-65 oC ~ +200 oC |
Salt spray
|
F class |
48h |
|---|---|
|
W class |
500h |
|
K class |
1000h |
Typical Applications
- Military Communication
- Aerospace Systems
- UAV & Defense Electronics
- Industrial Automation
Cross-Reference & Mating
Compatible Brands & Mating
|
Brands |
Equivalents |
Mates |
|---|---|---|
|
Amphenol |
D38999/26WG35SN + M85049/38-21W |
D38999/20WG35PN |
|
Souriau |
- |
- |
|
ITT Cannon |
- |
- |
|
Aero/Conesys |
- |
- |
|
Deutsch |
- |
- |
Compatible Backshells & Caps
|
Type |
Backshells |
Dust Caps |
|---|---|---|
|
Straight, Grommet Nut |
M85049/14-19S |
D38999/33K19N |
|
45°Quick Clamp |
M85049/15-19S |
|
|
90°Quick Clamp |
M85049/16-19S |
|
|
Straight, Spin Coupling Environmental EMI/RFI Backshell |
M85049/18-19S |
|
|
Straight, Spin Coupling Non-Environmental EMI/RFI Backshell |
M85049/19-19S |
|
|
Straight Crimp Ring Adapter |
M85049/20-19S |
|
|
Straight, Spin Coupling Non-Environmental Backshell |
M85049/21-19S |
|
|
Straight Strain Relief Clamp |
M85049/38-19S |
|
|
90°Strain Relief Clamp |
M85049/39-19S |
|
|
45°, Spin Coupling Environmental EMI/RFI Backshell |
M85049/78-19S |
|
|
90°, Spin Coupling Environmental EMI/RFI Backshell |
M85049/79-19S |
|
|
Straight, Spin Coupling, cont. Shrink Boot Adapter |
M85049/69-19S |
|
|
Straight, Self-Lock Band Lock Adapter |
M85049/88-19S |
|
|
45°, Self-Lock Band Lock Adapter |
M85049/89-19S |
|
|
90°, Self-Lock Band Lock Adapter |
M85049/90-19S |
|
|
Straight Pre-Shield Adapter |
M85049/115-19S |
|
|
90°Pre-Shield Adapter |
M85049/117-19S |
|
|
Straight, Strain Relief Clamp |
M85049/124-19S |
|
|
90°Strain Relief Clamp |
M85049/126-19S |
Same Pin Count – Multiple Connector Options
Technical Assembly Kit Included
Protecting Your Connection Integrity
Improper tools often lead to damaged terminals and costly downtime. To ensure the performance of your MIL-DTL-38999 and MIL-DTL-26482 series assemblies, we include a Complimentary AVIA Precision Assembly Kit with every order.
By providing this kit at no additional cost, we ensure that every contact is handled with the correct tooling, maintaining the full electrical specifications and long-term reliability of your system.
The Complimentary AVIA Precision Assembly Kit
High-Reliability Terminal Contacts:
Engineered for optimal electrical and mechanical fit.
Dedicated Extraction Tooling:
Ensures safe, non-destructive handling of all contacts.
Compliance
Quality Management Certifications
Our quality management system, certified to ISO 9001, ensures consistent manufacturing processes and reliable product quality. AVIA Electronics follows internationally recognized quality standards — including ISO 9001 for quality management, ISO 14001 for environmental management, and ISO 45001 for occupational health and safety — to deliver dependable connector solutions.
-
- ISO9001 Certification
-
- ISO14001 Certification
-
- ISO45001 Certification
Product Compliance Certifications
Our connectors comply with international environmental and safety requirements, ensuring reliable and compliant solutions for global markets. AVIA Electronics products meet CE marking requirements, RoHS directive standards for restricted hazardous substances, and REACH regulation requirements for chemical safety, supporting seamless integration into global supply chains.
-
- CE Compliant
-
- RoHS Compliant
-
- REACH Compliant
Product Test Reports
Our products undergo rigorous testing to verify environmental protection, durability, and performance in demanding applications. Connectors are validated to IP68 waterproof and dust-proof ratings and undergo 500-hour salt spray testing to confirm corrosion resistance in harsh military, aerospace, and marine environments.
-
- IP68 Protected
-
- Salt Spray Test
Warranty
1-Year Quality Warranty
We provide a 1-year limited warranty on all products, covering defects in materials and workmanship. Please note that this warranty does not cover damages resulting from improper use, unauthorized modifications, or intentional misuse.
