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 6650-00-434-0188
NSN 5855-00-185-1560
NSN 6620-01-111-9064
NSN 5950-00-727-9996
NSN 5935-01-244-4747
NSN 6240-01-551-8612
NSN 5905-00-542-6471
NSN 6150-01-563-1793
NSN 5925-00-349-7046
NSN 6110-01-144-9535
NSN 4140-01-486-3580
NSN 6645-00-413-0461