71-433338-21S

Overview

The Amphenol Aerospace Operations part number 71-433338-21S is a circular MIL-spec connector plug. It belongs to the MIL-DTL-38999 Series III family, designed for high-density interconnect applications in demanding environments. The unit features a size 22 shell with a straight cable mount configuration. It utilizes crimp termination for secure wire attachment and includes gold-plated contacts made from copper alloy to ensure reliable signal transmission. This component serves as a robust solution for aerospace and defense systems requiring durable electrical connections.

Feature Summary

• Constructed according to MIL-DTL-38999 Series III standards for environmental durability
• Features a straight cable mount design for efficient space utilization
• Utilizes crimp termination method for reliable contact retention
• Incorporates gold-plated copper alloy contacts for conductivity

Applications

• Aerospace avionics systems
• Defense communication equipment
• Military vehicle electronics
• Radar system interconnections

Procurement Notes

Verify the specific series designation and shell size against official Amphenol datasheets before procurement. Confirm that the crimp tooling matches the contact specifications. Ensure environmental sealing requirements align with the application's operational conditions. Cross-reference the manufacturer part number with any legacy equivalents to avoid ordering errors during supply chain integration.

Selection Notes

Select this component when a high-density circular connector is required for cable-mounted installations. The size 22 shell offers a balance between pin count and physical footprint. Verify compatibility with mating receptacles of the same series and shell size. Consider the operating temperature range and vibration resistance inherent to the MIL-DTL-38999 standard for suitability in harsh environments.

Part Context

This part falls under the extensive portfolio of circular connectors manufactured by Amphenol Aerospace Operations. It is part of the widely adopted MIL-DTL-38999 family, which has become an industry standard for replacing older MIL-C-26482 connectors. The 71-433338 prefix identifies the specific shell style and contact arrangement within this standardized series, ensuring interoperability across various military and industrial platforms.

Replacement Considerations

Direct replacements may include equivalent parts from other manufacturers adhering to MIL-DTL-38999 Series III specifications. Verify dimensional compatibility and contact current ratings before substitution. Legacy equivalents such as those from Cannon or ITT can be considered if they meet the exact pinout and shell size requirements.