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 6620-01-210-4401
NSN 4140-01-126-4891
NSN 5945-01-237-8032
NSN 5910-00-618-5455
NSN 5910-01-375-6036
NSN 6145-00-975-4457
NSN 5835-01-618-7621
NSN 6110-01-573-7259
NSN 5895-01-226-3507
NSN 6320-01-220-2264
NSN 5915-01-625-9403
NSN 5905-00-684-4999