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 6220-01-118-3976
NSN 5925-01-207-0910
NSN 5925-01-067-8301
NSN 4140-01-195-2070
NSN 5905-00-854-3680
NSN 5999-01-513-9944
NSN 5915-00-335-9553
NSN 5895-01-451-2020
NSN 5925-01-591-5017
NSN 5965-01-138-1865
NSN 6620-01-148-9071
NSN 5945-01-415-2842