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 4140-00-011-1899
NSN 6110-00-598-2574
NSN 5990-01-024-9659
NSN 6145-00-899-2814
NSN 6685-01-215-1130
NSN 5835-01-228-8666
NSN 5895-00-222-5043
NSN 5996-01-199-1200
NSN 5960-01-023-8800
NSN 6320-00-894-1644
NSN 6650-01-147-7135
NSN 2925-00-695-4143