Wrenching facility per ms33787-20
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 6685-01-627-1836
NSN 4140-01-038-7659
NSN 6145-01-359-8028
NSN 6320-01-239-5700
NSN 5985-01-525-5939
NSN 5835-00-236-8414
NSN 6220-00-991-8280
NSN 5960-00-941-3820
NSN 5945-01-320-8144
NSN 5855-00-149-0766
NSN 5935-01-197-2695
NSN 5930-00-611-5098