2 drive points, at 180 degree angle have been omitted
A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 5990-01-449-7090
NSN 5925-01-654-2687
NSN 5920-01-139-5368
NSN 5965-00-574-7525
NSN 5996-01-313-7963
NSN 6145-00-259-6946
NSN 6220-01-593-5083
NSN 5996-00-161-8376
NSN 7035-01-492-0419
NSN 6240-00-682-3508
NSN 6130-00-156-4550
NSN 6650-01-419-5954