NUT (P/N an320-3) - New Surplus

The AN320-3 is a shear castellated hex nut manufactured from steel for aircraft fastener retention. This nut secures drilled-shank clevis bolts and taper pins in shear-loaded joints, with castellations designed to accept a cotter pin for positive locking. Installation requires torquing per AN standards and aircraft maintenance manual specifications.

The cotter pin passes through the bolt's drilled shank and through the nut's castellated slots, preventing rotation and unintended loosening during flight operations. Commonly used in control linkages, structural attachments, and landing gear assemblies.

What is the NUT (P/N an320-3)?

The AN320-3 is a shear castellated hex nut manufactured from steel for aircraft fastener retention. This nut secures drilled-shank clevis bolts and taper pins in shear-loaded joints, with castellations designed to accept a cotter pin for positive locking.

What conditions is the an320-3 available in?

The an320-3 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 an320-3?

The an320-3 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 an320-3?

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.