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 5915-01-058-6537
NSN 4140-01-329-6293
NSN 5930-01-499-5483
NSN 5998-00-531-0289
NSN 4140-01-429-9060
NSN 7035-01-432-1163
NSN 6220-01-243-8661
NSN 6610-00-495-4918
NSN 6320-01-476-7702
NSN 4140-00-159-8471
NSN 5985-01-321-9503
NSN 2925-01-311-0446