71-528267-02S

Overview

The Amphenol Aerospace Operations part number 71-528267-02S is a circular connector receptacle. It belongs to the MIL-DTL-38999 Series I family, designed for high-density interconnect applications in harsh environments. The unit features an aluminum shell with nickel plating and utilizes a bayonet coupling mechanism for secure attachment. This specific component is configured as a plug-style receptacle with 61 positions, accommodating socket-type contacts. The contacts are gold-plated copper alloy, terminated via crimping methods. The assembly supports cable installation in a straight orientation, ensuring reliable signal transmission within military-grade specifications.

Feature Summary

• Bayonet coupling system provides rapid and secure mating cycles
• Gold-plated copper alloy contacts ensure low resistance and corrosion resistance
• Aluminum shell construction offers lightweight durability for aerospace use

Applications

• Military avionics systems requiring MIL-DTL-38999 compliance
• Aerospace communication equipment interfaces
• Harsh environment control instrumentation connections

Procurement Notes

Verify the exact suffix codes against official Amphenol datasheets to confirm contact arrangement and plating specifications. Ensure compatibility with corresponding wall-mount or panel-mount counterparts in the same series. Confirm that the bayonet coupling style matches the mating interface requirements of the target assembly. Cross-reference the 61-position configuration with system pinout diagrams to prevent wiring errors during integration.

Selection Notes

Select this component when a high-density 61-position circular connector is required for Series I applications. The choice depends on the need for a cable-mounted receptacle with a straight entry angle. Consider the aluminum housing material for weight-sensitive installations. Verify that the bayonet lock mechanism aligns with the operational speed and security needs of the deployment environment compared to threaded alternatives.

Part Context

This part falls under the Amphenol 38999 Aluminum series, a widely adopted standard for circular connectors in defense and aerospace sectors. The Series I designation indicates a specific size and contact density range within the broader MIL-DTL-38999 specification. These connectors are engineered to replace older MIL-C-26482 designs while maintaining backward compatibility in many form-factor applications.

Replacement Considerations

The part number alias 91-542754-61T may serve as a direct equivalent depending on manufacturer lot variations. Verify mechanical dimensions and electrical ratings before substitution. Ensure the replacement maintains the same 61-position socket configuration and bayonet coupling style.