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 6130-01-634-0603
NSN 6685-01-220-9354
NSN 5935-01-311-8744
NSN 5950-00-859-3359
NSN 6110-01-557-0609
NSN 5935-01-441-3097
NSN 5925-00-186-8669
NSN 6145-01-361-8985
NSN 6110-01-497-8051
NSN 6645-00-229-1521
NSN 6320-01-072-2073
NSN 6220-01-346-1285