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 6240-01-142-2963
NSN 5965-00-247-4886
NSN 5965-01-379-7706
NSN 4140-01-470-8518
NSN 6650-01-330-4113
NSN 5950-01-580-6543
NSN 5965-00-267-4173
NSN 5930-00-788-8558
NSN 5999-01-629-2490
NSN 6685-01-378-5513
NSN 6610-01-533-7458
NSN 6650-01-511-9397