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 4140-01-645-5625
NSN 5915-01-481-6207
NSN 6610-01-302-6347
NSN 4140-01-419-0198
NSN 6105-01-278-6517
NSN 5990-01-504-9265
NSN 6145-01-576-9609
NSN 5935-01-295-1725
NSN 5895-01-421-4117
NSN 5920-01-492-3545
NSN 5945-01-393-4182
NSN 6105-00-557-8962