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.
NSN 5905-00-274-3789
NSN 4140-00-279-3148
NSN 5945-00-660-5262
NSN 5996-01-592-4339
NSN 5999-00-407-2888
NSN 5895-01-178-6402
NSN 6645-01-574-5188
NSN 5985-01-154-9195
NSN 6130-01-415-0590
NSN 5905-00-840-6812
NSN 6135-01-121-3225
NSN 5895-01-406-3053