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 6645-01-600-2080
NSN 5945-01-579-5442
NSN 5935-01-198-4694
NSN 5905-01-660-5886
NSN 5960-01-464-0996
NSN 6135-00-900-2139
NSN 6685-01-168-5158
NSN 5965-00-927-4074
NSN 5996-00-483-1893
NSN 7035-01-617-4158
NSN 5855-00-962-5792
NSN 5998-01-429-6312