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 5990-00-797-7649
NSN 5925-01-317-4328
NSN 6150-00-679-9203
NSN 5905-00-296-8763
NSN 5910-01-359-1966
NSN 7035-00-442-1869
NSN 6135-00-191-6444
NSN 6150-01-170-4307
NSN 5925-00-756-5535
NSN 5895-01-275-6073
NSN 5990-01-100-1840
NSN 6620-01-412-4632