71-490003-10S

Overview

The Amphenol Aerospace Operations part number 71-490003-10S is a circular MIL Spec connector receptacle belonging to the D38999 Series III family. It features a size 12 shell with a jam nut mounting style and straight orientation. The connector utilizes a bayonet coupling mechanism for secure engagement. Electrical specifications include a current rating of 13 A and a voltage rating of 1 kV. It contains 3 positions with male pin contacts made of copper alloy and gold plating. The housing is constructed from aluminum alloy with an olive drab cadmium finish, designed for rugged military environments.

Feature Summary

• Bayonet coupling system ensures rapid and secure connection engagement.
• Gold-plated copper alloy contacts provide reliable signal transmission.
• Aluminum alloy housing offers structural durability in harsh conditions.

Applications

• Military avionics systems
• Jet aircraft interconnects
• Helicopter communication equipment

Procurement Notes

Verify the specific manufacturer source when sourcing this component, as multiple entities may produce equivalent parts under the same government part number. Confirm that the received unit matches the exact series designation and contact configuration required for your assembly. Ensure all documentation aligns with the original equipment manufacturer's specifications to maintain compliance with military standards.

Selection Notes

Select this component based on its compatibility with existing D38999 Series III mating interfaces. Evaluate the need for the specific jam nut mounting style versus other panel mount options. Consider the environmental sealing requirements and ensure the connector meets the necessary temperature and vibration ratings for the intended operational environment.

Part Context

This connector is part of the extensive portfolio of interconnect solutions provided by Amphenol Aerospace Operations for defense applications. It supports critical systems in modern military hardware, including advanced avionics and tactical vehicles. The design reflects decades of engineering expertise in creating robust connectivity for demanding operational scenarios.

Replacement Considerations

Equivalent part numbers include MS3456W12-10S and PT05CE-12-10S(LC). Verify cross-referencing with official distributor databases before substitution. Ensure mechanical dimensions and electrical characteristics match exactly to prevent integration issues.

FAQ

What is the contact arrangement for this connector?

The connector uses a 12-03 insertion arrangement with three male pin positions.

What material is used for the housing?

The housing is made of aluminum alloy with an olive drab cadmium electroless nickel finish.