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.
Classification: Nuts of iron or steel
NSN 5990-00-269-2226
NSN 6145-01-089-9879
NSN 7035-01-265-0216
NSN 6240-01-519-5893
NSN 6645-01-421-2445
NSN 4140-01-591-6540
NSN 5855-01-070-8084
NSN 2925-00-519-5292
NSN 5999-00-153-4175
NSN 6135-01-307-6006
NSN 5985-00-660-4699
NSN 6145-01-232-1319