71-490008-55P

Overview

The 71-490008-55P is a circular connector receptacle manufactured by Amphenol Aerospace Operations. It features a jam nut mounting style and utilizes a bayonet coupling mechanism for secure attachment. The component is designed with four positions and incorporates male pin contacts. Electrical specifications include a current rating of 7.5 A and a voltage rating of 600 V. The housing is constructed from aluminum alloy with an olive drab cadmium finish, while the contacts are made of copper alloy with gold plating. This unit complies with MIL-DTL-26482 standards.

Feature Summary

• Bayonet coupling system ensures rapid and secure connection engagement
• Jam nut mounting provides stable panel installation
• Gold-plated copper alloy contacts offer reliable conductivity

Applications

• Aerospace electronic systems
• Industrial control equipment
• Military communication devices

Procurement Notes

Verify the specific datasheet version to confirm environmental sealing ratings and mating interface compatibility. Ensure that the receiving facility has the appropriate tools for bayonet coupling installation. Cross-reference the MIL-DTL-26482 compliance requirements with the system design specifications before finalizing the procurement order.

Selection Notes

Select this model when a panel-mount receptacle with a bayonet lock is required. The 4-position configuration suits low-pin-count signal or power applications. Verify that the operating environment aligns with the aluminum alloy housing limitations and the specified electrical ratings for safe operation.

Part Context

This component belongs to the MIL-DTL-26482 series of circular connectors. It serves as a standard interconnect solution within defense and aerospace sectors. The design prioritizes mechanical durability and electrical reliability under rigorous operational conditions defined by military specifications.

Replacement Considerations

Compatible substitutes must match the 4-position layout, bayonet coupling type, and MIL-DTL-26482 form factor. Verify that alternative part numbers maintain identical contact arrangements and mounting dimensions to ensure direct interchangeability without redesigning the host panel.

FAQ

What is the coupling mechanism used in this connector?

The 71-490008-55P uses a bayonet coupling mechanism for secure attachment.

What material is used for the contacts?

The contacts are made of copper alloy with gold plating.