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 5990-01-043-7100
NSN 5910-01-325-9381
NSN 6610-01-522-3345
NSN 6135-00-935-8769
NSN 5960-00-936-3334
NSN 6620-00-959-6614
NSN 5975-00-715-1563
NSN 5985-01-469-1851
NSN 6220-01-428-3960
NSN 6110-00-431-6898
NSN 6620-01-510-3501
NSN 6130-01-472-3332