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 5920-01-215-0497
NSN 5905-01-389-0179
NSN 5835-00-939-7470
NSN 6150-01-504-3300
NSN 6645-01-343-6077
NSN 5925-01-549-1981
NSN 6320-01-643-0850
NSN 5895-01-334-1636
NSN 6645-01-514-7901
NSN 5920-01-623-4260
NSN 5990-01-548-3711
NSN 5945-01-342-9364