A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 5999-00-956-0679
NSN 5998-01-010-3973
NSN 6610-01-383-6982
NSN 6220-01-357-3672
NSN 6150-01-423-9989
NSN 5960-00-222-7772
NSN 5925-01-072-3867
NSN 5985-01-049-9895
NSN 6645-01-443-1103
NSN 5999-00-482-3436
NSN 5855-01-441-1392
NSN 6650-00-119-5917