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 5998-01-121-2657
NSN 5999-00-893-0858
NSN 6220-00-629-9271
NSN 6150-00-616-7717
NSN 6620-01-125-0794
NSN 5855-01-075-1292
NSN 7035-01-413-6697
NSN 6220-01-146-4469
NSN 5855-00-281-3843
NSN 5835-01-332-2867
NSN 6610-01-179-8352
NSN 5910-01-298-5928