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 6150-01-359-7345
NSN 6105-01-357-3494
NSN 7035-01-018-9629
NSN 5905-01-415-3734
NSN 6105-01-329-3533
NSN 5930-00-064-8287
NSN 5975-01-217-8545
NSN 5965-00-820-0469
NSN 5935-00-269-3675
NSN 6130-01-413-1068
NSN 6145-01-179-2896
NSN 5975-01-036-3507