NUT: ST (P/N 404-225) - New Surplus

The 404-225 is a steel hex nut for securing bolts in aircraft structural assemblies. This plain nut provides reliable joint clamping in airframe brackets and attachment points during maintenance and service operations. The part matches standard aerospace bolt threads and installs using appropriate torque specifications per FAA AC 43.13-1B guidance.

Steel construction ensures durability in vibration-prone aircraft environments. Verify applicability with your aircraft's Illustrated Parts Catalog before installation.

What is the NUT: ST (P/N 404-225)?

The 404-225 is a steel hex nut for securing bolts in aircraft structural assemblies. This plain nut provides reliable joint clamping in airframe brackets and attachment points during maintenance and service operations.

Does the 404-225 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The NUT: ST 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 404-225 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 404-225.

Can I order the 404-225 in custom quantities?

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