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 5996-01-507-5742
NSN 5920-01-556-4819
NSN 6620-01-036-6687
NSN 6130-00-196-5292
NSN 6220-01-060-9823
NSN 5925-01-317-8441
NSN 5915-01-440-1859
NSN 6130-01-354-0508
NSN 5905-01-623-2168
NSN 6130-01-462-2425
NSN 5960-00-959-5226
NSN 6620-00-523-4973