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.

What conditions is the an6-21 available in?

The an6-21 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.

How do I get pricing for the an6-21?

The an6-21 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.

Do you offer expedited shipping for the an6-21?

Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.