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 6240-00-012-1957
NSN 5950-00-140-3335
NSN 6610-00-659-1603
NSN 6105-01-623-6204
NSN 5999-01-024-9547
NSN 5855-00-252-5743
NSN 6610-01-323-0901
NSN 5855-01-175-3990
NSN 6105-01-307-5185
NSN 5950-01-065-9313
NSN 6220-00-515-6998
NSN 5835-00-257-2852