71-490007-24S

Overview

The Amphenol Aerospace Operations model 71-490007-24S is a circular MIL-spec receptacle connector designed for high-reliability interconnect applications. It conforms to the MIL-DTL-38999 Series III standard, utilizing a size 24 shell with a bayonet coupling mechanism. The component features a wall-mount installation style and an aluminum alloy housing finished with a nickel plating for corrosion resistance. It supports mixed contact arrangements including pin and socket configurations, accommodating wire sizes typically ranging from 16 AWG to 20 AWG depending on the specific contact type installed. The design ensures secure mating through its quick-connect bayonet interface.

Feature Summary

• Bayonet coupling mechanism provides rapid and secure connection engagement
• Wall-mount receptacle design facilitates direct panel integration
• Aluminum alloy housing with nickel plating offers environmental durability

Applications

• Avionics systems in military aircraft
• Radar and communication equipment enclosures
• Test and measurement instrument interfaces

Procurement Notes

Verify the exact contact arrangement and gender (pin or socket) required, as the shell part number often denotes the housing only. Confirm that the mating connector utilizes a compatible bayonet coupling system. Ensure the selected contacts match the specified wire gauge and termination method. Cross-reference the full drawing number against current revision levels to guarantee interchangeability with existing assemblies.

Selection Notes

Select this component when a ruggedized, shielded circular connector is needed for wall-mount applications. The size 24 shell accommodates a moderate number of circuits suitable for signal and low-power distribution. Consider the nickel-plated aluminum housing for general environmental protection. Verify that the bayonet lock is preferred over screw-thread or quick-release options for the specific mechanical constraints of the installation panel.

Part Context

This part belongs to the extensive family of MIL-DTL-38999 connectors manufactured by Amphenol Aerospace. These connectors are widely recognized for their small size, light weight, and high density capabilities. The Series III designation indicates a specific set of dimensional and performance characteristics distinct from earlier series versions, ensuring compatibility within modern military and aerospace interconnect ecosystems.

Replacement Considerations

Compatible substitutes include equivalent MIL-DTL-38999 Series III receptacles from other qualified manufacturers such as LEMO or ITT Cannon, provided they meet the same shell size, contact arrangement, and mounting style specifications. Verify that any replacement maintains the same shielding effectiveness and environmental sealing ratings.