71-419746-03S

Overview

The Amphenol Aerospace Operations 71-419746-03S is a circular plug connector designed for high-reliability interconnect applications. It features a bayonet coupling mechanism and a jam nut mounting style, ensuring secure attachment in demanding environments. The connector utilizes crimp termination for the contacts, which are constructed from copper alloy with gold plating to maintain signal integrity. This component belongs to the MIL-DTL-26482 Series II family, providing robust performance against vibration and harsh conditions typical in aerospace and defense sectors.

Feature Summary

• Bayonet coupling mechanism for rapid and secure engagement
• Jam nut panel mount installation style for structural stability
• Gold-plated copper alloy contacts for reliable conductivity
• Crimp termination method for durable wire connections

Applications

• Commercial aerospace avionics systems
• Defense communication equipment
• Harsh environment industrial instrumentation

Procurement Notes

Verify the specific shell size and contact arrangement against the design requirements before procurement. Confirm that the jam nut mounting style aligns with the panel thickness and available space. Ensure compatibility with mating receptacles within the same MIL-DTL-26482 Series II family. Check for any specific environmental sealing requirements if operating in extreme conditions.

Selection Notes

Select this model when a compact, high-density circular connector with a bayonet lock is required. The jam nut style is suitable for fixed installations where vibration resistance is critical. Consider the crimp termination requirement for assembly tooling availability. Evaluate the gold plating benefits for low-level signal transmission needs in corrosive environments.

Part Context

This part is part of the extensive Amphenol Aerospace circular connector portfolio, specifically adhering to military specifications for durability. It serves as a standard interconnect solution for replacing older MS-style connectors in modernized systems. The design prioritizes weight reduction and simplified installation without compromising electrical performance or mechanical strength.

Replacement Considerations

Direct replacements may include other manufacturers' equivalents meeting MIL-DTL-26482 Series II standards with identical shell sizes and contact arrangements. Verify pinout configurations and mounting dimensions to ensure interchangeability. Cross-reference with generic MS3474 series parts for potential drop-in substitutions.