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 5920-00-422-5517
NSN 5965-01-131-7496
NSN 5935-01-339-0366
NSN 5910-01-362-6292
NSN 6220-00-610-0968
NSN 2925-00-918-0859
NSN 6135-01-068-0119
NSN 6135-00-866-2311
NSN 5998-01-519-9129
NSN 7035-01-271-1643
NSN 5925-01-634-0664
NSN 6610-00-410-8968