A nut having 12 drive points and 24 sides. The bearing surface may be washer faced. An integral locking feature is incorporated in the design of the head or in the threads.
NSN 5915-00-105-2846
NSN 4140-01-482-3489
NSN 5990-00-816-1580
NSN 5950-00-797-8786
NSN 6130-01-232-1222
NSN 5945-01-430-4992
NSN 6220-01-541-4064
NSN 4140-01-522-1671
NSN 5985-01-072-5896
NSN 5998-01-493-9193
NSN 6685-01-020-8756
NSN 5945-01-367-0723