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 5895-00-387-4901
NSN 5910-00-927-2970
NSN 5965-00-123-1727
NSN 5925-01-044-2689
NSN 5950-01-355-1595
NSN 5920-00-900-5336
NSN 5905-01-125-9314
NSN 6620-01-284-1145
NSN 5999-01-103-2304
NSN 5935-01-066-4126
NSN 5920-01-433-2261
NSN 5975-00-243-3276