BOLT (P/N an5-20a) - New Surplus

The AN5-20A is a hex-head aircraft bolt conforming to AN-standard specifications for structural fastening. It features a 5/16-24 UNF-3A thread with an undrilled shank, manufactured from alloy steel for strength and durability. The undrilled shank design requires pairing with a stop nut to prevent loosening in vibration-prone applications.

Used throughout airframe and engine installations where AN5 hardware is specified. Installation requires torquing per aircraft maintenance manuals and FAA AC 43.13-1B guidance.

What is the BOLT (P/N an5-20a)?

The AN5-20A is a hex-head aircraft bolt conforming to AN-standard specifications for structural fastening. It features a 5/16-24 UNF-3A thread with an undrilled shank, manufactured from alloy steel for strength and durability.

Does the an5-20a meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The BOLT 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 an5-20a 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 an5-20a.

Can I order the an5-20a in custom quantities?

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