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 6240-00-422-1278
NSN 5950-01-432-7724
NSN 5920-01-529-8798
NSN 6150-01-458-7145
NSN 5999-00-379-9466
NSN 6150-01-523-0334
NSN 5925-00-331-9297
NSN 6650-01-240-2334
NSN 6110-00-129-8714
NSN 5925-01-617-6381
NSN 6150-01-568-1405
NSN 5835-01-091-2553