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 5905-00-421-4393
NSN 5915-00-371-9450
NSN 6145-00-647-3660
NSN 6610-01-473-5678
NSN 5965-01-500-9207
NSN 5945-01-179-3761
NSN 5910-00-306-5399
NSN 5930-00-835-8589
NSN 5930-01-113-7828
NSN 5975-01-323-7166
NSN 6145-00-264-0165
NSN 5855-01-270-6847