Two 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 4140-01-571-5717
NSN 5915-00-163-6538
NSN 5998-00-177-5279
NSN 5960-00-406-9985
NSN 6150-01-285-0697
NSN 6105-00-413-8097
NSN 6110-00-510-3788
NSN 6645-01-186-9809
NSN 5930-01-489-1066
NSN 5935-00-170-0142
NSN 5920-00-874-5620
NSN 6110-00-496-0532