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 6610-00-977-8039
NSN 6320-00-886-9771
NSN 6130-01-211-8686
NSN 7035-01-221-7856
NSN 5945-00-935-6922
NSN 6320-01-078-8257
NSN 5905-01-437-8811
NSN 5996-01-514-1610
NSN 5996-01-400-3558
NSN 6610-01-644-2546
NSN 5996-01-065-3440
NSN 5996-01-392-3178