A nut round in shape, whose outer surface or portion(s) is/are knurled. It may have provisions for external wrenching. An integral feature is incorporated for locking on the threads of a mating member.
NSN 4140-01-246-7041
NSN 5985-00-897-5503
NSN 7035-01-633-9537
NSN 6145-01-025-1372
NSN 5950-01-011-8963
NSN 6650-00-341-4176
NSN 5996-01-455-5823
NSN 6610-01-023-6073
NSN 6105-01-213-0142
NSN 5915-01-458-5697
NSN 5935-00-817-2718
NSN 5998-01-178-9008