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 2925-00-178-0940
NSN 6240-00-170-5302
NSN 5930-00-300-3864
NSN 5835-01-093-7809
NSN 5855-01-302-4166
NSN 5920-01-283-2611
NSN 5895-01-435-6624
NSN 5950-01-087-2506
NSN 6645-01-227-2036
NSN 5996-01-071-4828
NSN 5835-00-289-9080
NSN 6620-01-218-6203