A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery.
Classification: Nuts of iron or steel
NSN 5905-01-431-9177
NSN 6220-01-219-1772
NSN 5935-01-179-2979
NSN 6145-01-619-4439
NSN 5975-01-361-0459
NSN 5990-01-311-7491
NSN 5930-01-651-1904
NSN 2925-00-388-8932
NSN 5999-01-197-8160
NSN 6620-01-578-7561
NSN 5920-00-785-5471
NSN 5990-00-855-6535