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 5990-01-433-3786
NSN 6130-01-280-8810
NSN 6610-01-168-7943
NSN 6105-01-417-2969
NSN 5990-01-384-2697
NSN 6610-00-279-8519
NSN 6150-01-568-2462
NSN 5915-01-112-4449
NSN 5965-01-528-4531
NSN 5935-01-105-9911
NSN 7035-01-443-3052
NSN 4140-01-584-9092