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 6620-01-177-5567
NSN 5999-01-208-3942
NSN 5925-01-411-6028
NSN 5999-01-308-4122
NSN 5998-01-531-0522
NSN 5965-01-204-8505
NSN 5855-01-450-1080
NSN 6150-01-071-2763
NSN 7035-01-422-4642
NSN 5965-00-501-7835
NSN 6135-00-995-1089
NSN 6145-00-119-8201