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 5975-01-308-7020
NSN 6240-00-770-7647
NSN 6610-01-400-3880
NSN 5895-00-975-5423
NSN 6650-01-531-4542
NSN 5855-01-434-8467
NSN 5950-00-083-0203
NSN 5855-00-763-2155
NSN 2925-00-290-7052
NSN 5999-01-023-1224
NSN 2925-01-519-1707
NSN 6620-01-224-1617