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 5990-00-013-1042
NSN 5960-01-416-6187
NSN 5910-00-179-5826
NSN 5996-01-221-2091
NSN 6130-00-394-6555
NSN 5925-00-904-5763
NSN 2925-01-327-3069
NSN 6110-00-329-6666
NSN 2925-01-411-8002
NSN 5990-01-522-6096
NSN 6650-01-491-6733
NSN 5950-00-904-5903