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 5925-01-617-3224
NSN 5945-00-517-9566
NSN 6105-01-345-2839
NSN 5905-00-859-2933
NSN 6150-01-457-8428
NSN 4140-01-207-0165
NSN 6145-01-018-6539
NSN 5925-00-786-8123
NSN 5920-00-812-7461
NSN 6135-01-296-1860
NSN 5996-01-460-8631
NSN 5895-01-526-4481