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 5945-01-502-1521
NSN 6685-01-270-1526
NSN 5996-01-201-4500
NSN 6240-01-578-7913
NSN 5930-01-106-0007
NSN 5990-01-467-7575
NSN 5910-00-452-4268
NSN 5910-00-459-0796
NSN 6620-01-275-2781
NSN 5999-00-431-9230
NSN 5905-00-687-2121
NSN 5920-01-459-5823