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 6110-01-248-9126
NSN 5965-01-266-7968
NSN 5925-01-542-5333
NSN 5855-00-233-2366
NSN 5999-00-854-2148
NSN 6150-00-190-2173
NSN 6145-01-328-5998
NSN 5950-01-297-3983
NSN 5915-00-456-0873
NSN 6240-00-954-0124
NSN 5920-01-362-8814
NSN 6240-01-449-0746