BOLT, MACHINE (P/N an5-12a) - New Surplus

The AN5-12A is a hex-head machine bolt conforming to AN5 series specifications with 5/16-24 UNF-3A threads and an undrilled shank. Manufactured from high-strength steel, this fastener secures structural brackets and components in certified aircraft airframe assemblies. The undrilled design (indicated by the "A" suffix) requires pairing with self-locking nuts to prevent vibration-induced loosening during flight.

Installation requires matching the dash number to your specific grip length and following the aircraft maintenance manual torque and assembly procedures.

What is the BOLT, MACHINE (P/N an5-12a)?

The AN5-12A is a hex-head machine bolt conforming to AN5 series specifications with 5/16-24 UNF-3A threads and an undrilled shank. Manufactured from high-strength steel, this fastener secures structural brackets and components in certified aircraft airframe assemblies.

Does the an5-12a meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The BOLT, MACHINE 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 an5-12a 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 an5-12a.

Can I order the an5-12a in custom quantities?

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