71-528266-66R

Overview

The Amphenol Aerospace Operations part number 71-528266-66R is a circular MIL-spec connector receptacle belonging to the 38999 series. It complies with MIL-DTL-38999 standards and features an aluminum shell with gold-plated contacts. The unit provides 66 positions using size 18 socket contacts designed for crimp termination. It utilizes a bayonet coupling style for secure engagement and supports a straight panel mount installation configuration.

Feature Summary

• Bayonet coupling mechanism ensures rapid and secure mating
• Gold-plated copper alloy contacts provide reliable signal transmission
• Aluminum shell construction offers durability in harsh environments

Applications

• Avionics systems
• Aircraft power distribution
• Military instrumentation

Procurement Notes

Verify the specific revision level and environmental sealing requirements against the official datasheet before procurement. Confirm that the supplier provides traceability documentation compliant with military specifications. Ensure compatibility with existing mating plugs regarding contact orientation and keying options to prevent installation errors.

Selection Notes

Select this component when high-density interconnectivity is required within strict weight constraints typical of aerospace applications. The 66-position capacity suits complex signal routing needs. Verify that the operating temperature range and vibration resistance meet the specific system demands. Ensure the bayonet style aligns with the enclosure design for proper access and maintenance.

Part Context

This part belongs to the extensive 38999 family of circular connectors, widely used in defense and aerospace sectors. The 71- prefix typically denotes a specific manufacturer code or series variant within the broader MIL-DTL-38999 ecosystem. It represents a standard solution for reliable interconnects where space and performance are critical factors.

Replacement Considerations

Cross-reference with MS27467E18-66S or JTPQ00RE-18-66S(005) for potential equivalents. Verify dimensional tolerances and contact alignment before substitution. Ensure the replacement maintains the same current rating and environmental sealing capabilities.