NUT (P/N an365-428a) - New Surplus

The AN365-428A is a nylon-insert self-locking hex nut with 1/4-28 UNF internal threads and steel body meeting AN/MS aerospace standards. It prevents fastener loosening under vibration without requiring lock washers or safety wire. Equivalent to MS21044N4, this nut is rated for continuous service below 250°F and is reusable through multiple installation cycles.

Common applications include airframe brackets, equipment mounts, and structural panel fastening. Install and torque per aircraft maintenance manual specifications.

What is the NUT (P/N an365-428a)?

The AN365-428A is a nylon-insert self-locking hex nut with 1/4-28 UNF internal threads and steel body meeting AN/MS aerospace standards. It prevents fastener loosening under vibration without requiring lock washers or safety wire.

Does the an365-428a meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The NUT conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.

What material is the an365-428a manufactured from?

Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the an365-428a.

Can I order the an365-428a in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The NUT is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.