Standard NUT, PLAIN - O.D. SLOTS, KEY WASHER LOCKED, LOW ALLOY STEEL (SAE 8740), AS8879 2020-11-11 CURRENT AS3163A
Standard NUT, PLAIN - O.D. SLOTS, KEY WASHER LOCKED, AMS 6322, MIL-S-8879 2006-05-05 HISTORICAL AS3163