NUT,PLAIN,SLOTTED,HEXAGON (P/N an320-9) - New Surplus

The AN320-9 is a plain, slotted hexagon nut with 9/16-18 UNF threads designed for shear-loaded fastener applications. This steel nut features a castellated (slotted) design that accepts a cotter pin for positive locking on drilled fastener shanks. Commonly paired with clevis bolts and taper pins in aircraft structural joints where shear loads predominate.

Installation requires threading the nut onto the drilled bolt shank and securing with a cotter pin inserted through the slots and bolt hole, preventing rotation and vibration loosening during flight operations.

What is the NUT,PLAIN,SLOTTED,HEXAGON (P/N an320-9)?

The AN320-9 is a plain, slotted hexagon nut with 9/16-18 UNF threads designed for shear-loaded fastener applications. This steel nut features a castellated (slotted) design that accepts a cotter pin for positive locking on drilled fastener shanks.

What conditions is the an320-9 available in?

The an320-9 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 an320-9?

The an320-9 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 an320-9?

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.