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 6145-00-239-2143
NSN 6645-01-629-9657
NSN 6105-01-384-3687
NSN 4140-00-117-9820
NSN 4140-01-166-7211
NSN 5960-00-004-6636
NSN 5975-01-569-2490
NSN 5975-01-502-9662
NSN 5998-00-677-4208
NSN 5996-00-060-3289
NSN 7035-01-192-2659
NSN 7035-00-478-4596