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 6130-00-690-9923
NSN 5920-00-328-4503
NSN 6130-01-627-1816
NSN 5965-00-875-3560
NSN 5950-01-366-3688
NSN 5930-00-189-8672
NSN 4140-01-409-1764
NSN 5905-01-383-4166
NSN 5999-01-113-9146
NSN 5895-01-131-2666
NSN 2925-01-224-1885
NSN 6110-00-036-6386