71-419749-05S

Overview

The Amphenol Aerospace Operations part number 71-419749-05S is a circular MIL-spec connector plug. It belongs to the PT series, designed for high-reliability interconnect applications in harsh environments. The component features a threaded coupling mechanism and is constructed with an aluminum alloy shell. It utilizes crimp termination for secure wire attachment and incorporates gold-plated contacts made from copper alloy to ensure low contact resistance and corrosion resistance. This receptacle-style plug is engineered to meet stringent military standards for durability and performance.

Feature Summary

• Threaded coupling style provides secure mating and vibration resistance
• Aluminum alloy shell construction offers structural integrity and shielding
• Gold-plated copper alloy contacts ensure reliable signal transmission
• Crimp termination method supports robust wire-to-connector connections

Applications

• Commercial aerospace avionics systems
• Military aircraft power distribution networks
• Harsh environment instrumentation controls
• Aircraft engine monitoring interfaces

Procurement Notes

Verify the specific datasheet revision and environmental sealing ratings before procurement. Confirm that the mating connector matches the threaded interface type. Ensure cable preparation tools are compatible with the crimp termination requirements. Check for any specific material certifications required by your project specifications. Validate compatibility with existing harness assemblies to prevent installation errors.

Selection Notes

Select this component when a threaded circular connector is required for aerospace or industrial use. Consider the shell size and contact arrangement to match the circuit density needs. Evaluate the operating temperature range against the application's thermal profile. Ensure the crimp tooling availability aligns with manufacturing capabilities. Verify that the gold plating thickness meets long-term reliability expectations.

Part Context

This part falls under the Amphenol PT series of circular connectors, which are widely used in defense and commercial aviation. The series is known for its rugged design and compliance with MIL-DTL-38999 standards. These connectors are integral to modern aircraft wiring systems, providing dependable connections for critical flight data and power lines. The brand emphasizes weight reduction and simplified maintenance in these designs.

Replacement Considerations

Cross-reference with other manufacturers offering MIL-DTL-38999 Series I, II, or III equivalents. Ensure dimensional compatibility with existing panel cutouts and mating plugs. Verify that the replacement maintains the same contact arrangement and current carrying capacity. Check for any changes in material composition that might affect environmental sealing.