D38999/26ZG75AN Connector | AVIA Electronics

Explore the D38999/26ZG75AN MIL-DTL-38999 Series III circular connector from AVIA Electronics. View technical specifications, check availability, and request a quote.

999999 in stock

  • ISO & Quality Certifications
  • 100% Intermateable with original parts.
  • 1-Year Warranty with Full After-Sales Support
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Product Overview

The D38999/26ZG75AN is a high-reliability circular connector designed for demanding aerospace, industrial, and high-performance electronic applications. Engineered for secure electrical connections and dependable operation in harsh environments, this connector supports applications exposed to vibration, mechanical stress, and temperature variations.

The D38999/26ZG75AN belongs to the MIL-DTL-38999 Series III family of circular connectors. It features a straight plug configuration and triple-start threaded coupling system, with a 21-75 insert arrangement and normal keying orientation. Its rugged construction and secure mating interface help maintain reliable electrical performance in demanding operating conditions. Exact contact configuration, mechanical dimensions, and electrical specifications should be verified against the applicable product datasheet.

With its robust design and high-reliability construction, the D38999/26ZG75AN is suitable for aerospace equipment, industrial automation, communication systems, and other applications requiring dependable electrical connectivity. Please consult the relevant product datasheet to confirm the connector’s shell size, contact arrangement, contact configuration, coupling interface, surface finish, and mating compatibility before installation.

Part Number Breakdown

Part Number Breakdown
Part Number Breakdown

Stock & Availability

In Stock Factory Lead Time
In Stock Factory Lead Time

In Stock / Factory Lead Time

At AVIA Electronics, we help customers plan procurement and delivery schedules for the D38999/26ZG75AN and our broader range of high-reliability connectors. Our team confirms product availability, lead times, and shipping arrangements before order confirmation to support your production, maintenance, and project requirements.

  • In-Stock (Ready to Ship): Contact us to verify current inventory of the D38999/26ZG75AN. For confirmed in-stock orders, dispatch is typically arranged within 24–48 business hours after order and payment confirmation, subject to product availability and shipping arrangements.

  • Factory Lead Time: For production orders or larger quantities of the D38999/26ZG75AN, we provide estimated lead times based on order quantity, material availability, and production capacity. The expected delivery schedule is confirmed during the quotation process, with updates provided 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 the D38999/26ZG75AN. Order quantities, availability, and delivery schedules are coordinated according to your project requirements.

Request a Quote Today: Send AVIA Electronics your required quantity, target delivery date, shipping destination, and any specific technical requirements. Our sales team will confirm availability and provide a quotation with pricing, estimated lead time, and shipping options for the D38999/26ZG75AN.

Multiple shell sizes available
Multiple shell sizes available

Multiple shell sizes available

The D38999/26ZG75AN is a high-reliability MIL-DTL-38999 Series III circular connector designed for demanding aerospace, industrial, and electronic applications. Featuring a straight plug configuration and a secure threaded coupling system, this connector supports dependable electrical connections in environments exposed to vibration, mechanical stress, and temperature variations.
 
  • Model-Specific Configuration: The D38999/26ZG75AN features a 21-75 insert arrangement with normal keying orientation. This configuration is designed to support reliable electrical interconnections in high-performance systems. Consult the applicable datasheet to verify contact quantity, contact types, 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.

  • Environmental Durability: The D38999/26ZG75AN is designed for demanding operating environments requiring mechanical strength and reliable connectivity. Shell material, surface finish, sealing performance, operating temperature, corrosion resistance, and applicable qualification requirements should be verified against the relevant product datasheet.

Source Your D38999/26ZG75AN Connector from AVIA Electronics: Contact AVIA Electronics for connector sourcing, configuration verification, and procurement support. Whether you need engineering samples, small quantities, or bulk production orders, our team can help confirm product 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
Custom-configurations-supported

Custom configurations supported

At AVIA Electronics, we understand that standard connector configurations may not meet every project’s requirements. For the D38999/26ZG75AN, we provide technical support to help customers verify connector compatibility, identify suitable accessories, and coordinate reliable sourcing solutions based on their application needs.

  • Contact Configuration Selection: Our team can help verify the D38999/26ZG75AN 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 alternative connector shell materials and surface finishes based on corrosion resistance, electromagnetic compatibility, environmental conditions, and weight requirements. Alternative configurations may require a different part number.

  • Backshell & Mechanical Integration: We can assist in identifying compatible backshells and strain-relief accessories for the D38999/26ZG75AN, including attachment interfaces, cable diameter requirements, and installation considerations.

  • Accessory Sourcing & Kitting: AVIA Electronics can coordinate the supply of D38999/26ZG75AN connectors, compatible backshells, protective caps, and other accessories. Matched sets and kitting services are available for discussion, subject to component availability and compatibility verification.

Request Technical Support & a Quotation: Source your D38999/26ZG75AN connector through AVIA Electronics. Send us your part number, technical drawings, required quantity, cable specifications, and target delivery date. Our team will help verify compatibility, confirm availability, and provide competitive pricing, estimated lead times, and suitable supply options for engineering samples, small orders, or bulk procurement.

Samples
Samples

Sample Policy & Flexible Order Support

At AVIA Electronics, we support engineering evaluations, prototype development, and system integration testing with sampling options for the D38999/26ZG75AN connector, subject to product availability.

  • Sample Availability: Contact us to confirm sample availability for the D38999/26ZG75AN. Our team can provide pricing, availability information, and estimated dispatch schedules to support your engineering evaluation and prototype testing.

  • Flexible Order Quantities: We support prototype testing, small-quantity purchases, and larger procurement requirements. Whether you need a single connector for evaluation or multiple units for system integration, 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 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 D38999/26ZG75AN part number, required quantity, delivery destination, and project requirements. Our team will 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.

SF-Express
SF-Express
DHL, UPS, FedEx
DHL, UPS, FedEx

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.

D38999/26ZG75AN

Application

Industrial Automation
Aerospace Systems

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

D38999/26ZG75AN

D38999/20ZG75BN

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

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.

Extraction Tool
Extraction Tool

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.

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.

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.

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.

1-year-warranty