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 5905-00-157-5620
NSN 5950-01-634-0055
NSN 6650-01-246-8262
NSN 7035-01-432-6762
NSN 5975-01-509-6334
NSN 5996-01-364-2757
NSN 6320-00-225-7013
NSN 6685-00-757-8925
NSN 6150-00-875-0739
NSN 5998-00-924-2947
NSN 6645-00-116-1409
NSN 6610-01-029-8749