71-419754-31P

Overview

The Amphenol Aerospace Operations model 71-419754-31P is a circular connector plug designed for high-reliability aerospace and defense applications. It features a shell size of 31 with a total of 31 contact positions, accommodating both solder pin and socket configurations. The connector utilizes a threaded coupling mechanism to ensure secure mating under vibration and shock conditions. Constructed with metal shells, typically aluminum alloy or stainless steel depending on the specific suffix, it provides robust mechanical protection and electromagnetic interference shielding. The design supports various environmental sealing options to maintain integrity in harsh operating conditions.

Feature Summary

• Threaded coupling interface ensures secure connection under high vibration environments
• Metal shell construction provides structural durability and EMI shielding capabilities
• High-density contact arrangement allows for multiple signal and power lines in a compact form factor

Applications

• Avionics systems in military aircraft
• Radar and communication equipment installations
• Ground support equipment requiring rugged interconnects

Procurement Notes

Verify the exact suffix codes against the manufacturer's current datasheet to confirm material specifications, plating types, and contact arrangements. Ensure compatibility with mating receptacles regarding shell size and thread type. Confirm environmental sealing requirements match the operational environment specifications provided by the system integrator.

Selection Notes

Select this component based on the required number of contacts and the specific mounting style needed for the assembly. Evaluate the environmental sealing options such as backshell types to meet ingress protection standards. Consider the operating temperature range and resistance to corrosive agents when finalizing the part configuration for long-term reliability.

Part Context

This part belongs to the Amphenol Series 71 family of circular connectors, widely used in aerospace and defense sectors. The series is known for its ruggedized design and compliance with stringent military standards. Model 71-419754-31P represents a specific configuration within this lineage, offering a balance of high pin count and mechanical strength suitable for critical flight and ground systems.

Replacement Considerations

Cross-reference with other manufacturers' MIL-DTL-38999 Series I or III equivalents if space constraints allow. Verify that any substitute maintains the same shell size, thread type, and contact density. Ensure electrical continuity and environmental sealing performance meet or exceed original specifications.