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 5990-00-412-4411
NSN 5999-01-401-5322
NSN 6620-01-389-7446
NSN 5915-00-453-1858
NSN 5950-01-367-6152
NSN 6650-01-260-1762
NSN 5835-01-258-7866
NSN 6650-01-604-9073
NSN 5996-01-183-7647
NSN 5855-00-688-9954
NSN 6110-01-441-3422
NSN 4140-01-344-4961