BOLT-.375-24UNF X 2.20 LG-DR S (P/N an6-21) - New Surplus

The AN6-21 is a 3/8-24 UNF aircraft bolt with a drilled shank for positive locking with a cotter pin. Steel construction meets AN (Army-Navy) standards for airframe structural applications. With a 1-9/16 inch grip length and 2-7/32 inch overall length, this bolt secures critical joints where vibration resistance is essential.

Install with the specified nut and washer, then lock with a cotter pin through the drilled shank. Torque per aircraft maintenance manual and FAA AC 43.13-1B guidance. Common in general aviation and commercial airframe assembly where reliable fastening prevents component separation during flight operations.

What is the BOLT-.375-24UNF X 2.20 LG-DR S (P/N an6-21)?

The AN6-21 is a 3/8-24 UNF aircraft bolt with a drilled shank for positive locking with a cotter pin. Steel construction meets AN (Army-Navy) standards for airframe structural applications.

Does the an6-21 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The BOLT-.375-24UNF X 2.20 LG-DR S 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 an6-21 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 an6-21.

Can I order the an6-21 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The BOLT-.375-24UNF X 2.20 LG-DR S is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.