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 5998-00-277-7552
NSN 5975-00-127-1321
NSN 5905-01-601-7459
NSN 4140-01-501-9994
NSN 5945-00-410-6892
NSN 5990-01-455-8035
NSN 6130-01-010-3603
NSN 5975-00-455-1052
NSN 6220-01-004-8909
NSN 6110-00-271-9928
NSN 6220-01-348-3725
NSN 5945-01-271-7456