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 6685-00-439-4366
NSN 4140-00-269-5236
NSN 5965-01-423-2204
NSN 5895-01-469-7580
NSN 5950-01-185-1489
NSN 6650-00-629-8027
NSN 5835-01-546-2008
NSN 6320-01-087-7961
NSN 5960-01-617-6345
NSN 5935-01-435-4414
NSN 6645-00-620-9294
NSN 6685-00-966-1596