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 6240-00-435-0433
NSN 6320-01-159-2211
NSN 6610-00-500-6944
NSN 5998-01-397-1516
NSN 5990-01-247-8277
NSN 5905-01-425-7766
NSN 4140-01-469-9226
NSN 6220-01-177-5694
NSN 6685-00-527-6805
NSN 6110-01-389-7504
NSN 7035-01-178-9354
NSN 5855-01-111-3962