71-432476-04S

Overview

The Amphenol Aerospace Operations 71-432476-04S is a circular MIL-DTL-26482 Series II connector receptacle. It features a size 18 shell with a straight cable mount design and an aluminum alloy housing finished with chromate plating. The assembly utilizes a bayonet coupling mechanism for secure engagement. Electrical specifications include a current rating of 10 amperes per contact and a voltage rating of 500 volts AC. The unit contains four socket contacts, which are gold-plated copper alloy terminals designed for crimp termination to ensure reliable signal transmission in harsh environments.

Feature Summary

• Bayonet coupling system provides rapid connection and secure locking
• Gold-plated contacts ensure low resistance and corrosion resistance
• Aluminum alloy housing offers lightweight structural integrity
• Crimp termination supports flexible cable harness integration

Applications

• Avionics systems in military aircraft
• Radar equipment interconnections
• Communication subsystems in defense platforms
• Instrumentation control circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest datasheet to confirm contact arrangement and plating options. Ensure compatibility with mating plug shells and backshells. Confirm that the crimp tooling matches the specified contact size. Request certification documents for traceability requirements before finalizing procurement orders.

Selection Notes

Select this component when a straight cable mount receptacle is required for MIL-DTL-26482 applications. Evaluate the need for gold versus silver plating based on environmental exposure. Consider the shell size relative to available space constraints. Verify that the crimp termination method aligns with existing wire preparation processes and tooling availability.

Part Context

This part belongs to the MIL-DTL-26482 Series II family of circular connectors. These connectors are widely used in aerospace and defense sectors due to their robust performance standards. The series supports various shell sizes and contact arrangements to accommodate diverse wiring needs across different operational scenarios.

Replacement Considerations

Cross-reference with MS3476L18-4S or equivalent government standard parts. Verify dimensional interchangeability and electrical continuity. Confirm that alternative sources meet the same MIL-DTL-26482 specifications.