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 5915-00-278-5561
NSN 6240-00-170-5302
NSN 5915-01-600-7980
NSN 6135-01-087-7895
NSN 6610-01-336-2787
NSN 5950-01-462-1626
NSN 6240-01-416-3713
NSN 5930-00-307-5381
NSN 5905-01-537-9012
NSN 6650-00-754-2276
NSN 6620-00-086-5223
NSN 5985-01-178-5842