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 6220-00-854-2532
NSN 5920-01-536-9253
NSN 6220-01-619-2650
NSN 5905-01-557-7961
NSN 5950-01-028-4754
NSN 6105-01-195-8225
NSN 6610-00-802-8057
NSN 5915-01-362-0665
NSN 6320-01-571-8974
NSN 6130-00-055-3330
NSN 6130-01-485-0226
NSN 6145-00-764-1441