71-419752-39S

Overview

The 71-419752-39S is a circular connector plug manufactured by Amphenol Aerospace Operations. It features a size 20 shell with 39 positions and socket contacts. The connector utilizes a cable mount installation style with crimp termination for the contacts. It is designed to meet MIL-DTL-38999 Series III specifications, ensuring environmental sealing and durability. The housing is constructed from aluminum alloy with an olive drab cadmium electroless nickel plating finish. This component is intended for high-reliability applications requiring robust interconnection in harsh conditions.

Feature Summary

• MIL-DTL-38999 Series III compliance for rigorous environmental performance
• Self-locking threaded coupling mechanism for secure connection
• Aluminum alloy housing with corrosion-resistant surface treatment
• Crimp termination method for reliable electrical contact

Applications

• Avionics systems in military aircraft
• Radar and communication equipment installations
• Weapon system control interfaces
• Harsh environment industrial instrumentation

Procurement Notes

Verify the specific suffix codes against the manufacturer's current datasheet to ensure compatibility with mating connectors and contact configurations. Confirm that the ordering information matches the required shell size, contact type, and mounting style. Cross-reference the part number with official Amphenol Aerospace documentation to validate availability and technical specifications before procurement.

Selection Notes

Select this connector when MIL-DTL-38999 Series III standards are mandatory for the application. Ensure the cable diameter accommodates the size 20 shell dimensions. Verify that the crimp tooling matches the specified contact sizes. Consider the operating temperature range and environmental sealing requirements to confirm suitability for the intended deployment zone.

Part Context

This part belongs to the Tri-Start TV series of circular connectors produced by Amphenol Aerospace Operations. These connectors are widely used in aerospace and defense sectors due to their standardized interface and high reliability. The series offers various shell sizes and contact arrangements to support diverse signal and power distribution needs in critical systems.

Replacement Considerations

Compatible replacements must adhere to MIL-DTL-38999 Series III physical and electrical dimensions. Verify cross-brand equivalents from other qualified manufacturers such as Glenair or ITT Cannon if sourcing constraints exist. Ensure mating face geometry and thread pitch remain identical to maintain interchangeability.