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 6240-01-112-1120
NSN 6220-01-204-3575
NSN 7035-00-299-7150
NSN 6220-00-577-3435
NSN 5965-01-434-0705
NSN 5990-01-362-7532
NSN 4140-00-517-7902
NSN 6320-00-422-9006
NSN 5920-01-152-1949
NSN 6145-01-401-3713
NSN 2925-01-391-9247
NSN 6150-00-498-5144