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 6220-01-660-1900
NSN 5990-01-568-5565
NSN 5998-01-515-4665
NSN 5930-00-851-2651
NSN 5925-00-715-7831
NSN 6620-01-036-2983
NSN 6645-01-123-9277
NSN 5950-01-649-7958
NSN 5990-01-595-4584
NSN 5930-01-258-5878
NSN 5910-01-264-2900
NSN 6130-01-424-6070