Bearing surface shall be square to p.D. Of thread to within 0.001 t.I.R.
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 6645-01-253-1950
NSN 5935-01-206-4968
NSN 5985-01-241-8742
NSN 5999-01-179-0704
NSN 5935-01-549-4546
NSN 5925-01-012-9800
NSN 2925-01-159-0506
NSN 5835-00-400-5056
NSN 5999-01-176-0052
NSN 5985-01-572-1757
NSN 6220-01-149-4177
NSN 5975-01-268-0474