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 5998-01-054-1791
NSN 6145-01-150-8788
NSN 6135-00-087-5300
NSN 5985-01-399-0307
NSN 6650-01-160-5058
NSN 6110-01-125-3372
NSN 6220-01-530-5589
NSN 6135-01-077-5705
NSN 5985-01-493-4023
NSN 5895-00-989-1025
NSN 5925-01-278-4957
NSN 5835-01-414-3258