71-477108-21P

Overview

The Amphenol Aerospace Operations model 71-477108-21P is a circular MIL-spec connector plug. It features a size 22 shell with a 22-21 insertion arrangement, providing 21 positions for socket contacts. The unit utilizes crimp termination for wire attachment and is designed for cable mounting installation. Constructed from aluminum alloy with cadmium plating, the connector ensures durability in harsh environments. It adheres to MIL-DTL-38999 Series III standards, offering reliable performance for critical interconnect applications.

Feature Summary

• MIL-DTL-38999 Series III compliance for rigorous environmental resistance
• Crimp termination method ensuring secure wire connections
• Aluminum alloy housing with protective cadmium coating
• Cable mount configuration for flexible system integration

Applications

• Military avionics systems
• Defense communication equipment
• Ruggedized industrial control panels

Procurement Notes

Verify the specific series designation and contact orientation against the official datasheet before procurement. Confirm that the crimp tooling matches the terminal specifications required for this plug assembly. Ensure environmental sealing requirements align with the intended operational conditions. Cross-reference the manufacturer part number with authorized distributors to guarantee authenticity and traceability of the component.

Selection Notes

Select this component when a high-density circular connector is required for cable-mounted applications. The 22-21 arrangement supports multiple signal lines within a compact form factor. Consider the aluminum construction for weight-sensitive projects requiring robust mechanical strength. Validate compatibility with mating receptacles sharing the same shell size and thread style.

Part Context

This plug belongs to the extensive family of MIL-DTL-38999 connectors manufactured by Amphenol Aerospace. These components are widely utilized across defense and aerospace sectors due to their standardized dimensions and interchangeability. The 71-series designation indicates a specific variant within the broader product line, tailored for high-reliability interconnect needs in demanding operational scenarios.

Replacement Considerations

Compatible substitutes include MS27467E22F21S and other MIL-DTL-38999 Series III plugs with matching shell size and contact arrangements. Verify dimensional tolerances and interface specifications before substitution.