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 5998-01-476-6903
NSN 6135-00-299-6918
NSN 5975-00-114-5354
NSN 6610-01-348-0545
NSN 5990-01-507-7495
NSN 6650-01-619-9986
NSN 6645-01-010-3746
NSN 5935-01-490-5716
NSN 6320-01-386-3491
NSN 5930-01-591-2252
NSN 6685-01-131-4694
NSN 6610-01-117-2510