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 6620-00-456-0404
NSN 5925-01-496-2628
NSN 6145-01-634-0388
NSN 5960-01-443-4861
NSN 5910-01-113-1609
NSN 5930-00-013-2202
NSN 5905-00-597-6081
NSN 5990-01-081-0619
NSN 6320-00-539-9283
NSN 6135-01-068-0119
NSN 6620-01-365-1499
NSN 5999-01-136-0865