A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 4140-00-726-3551
NSN 5920-00-794-4415
NSN 6110-01-325-6698
NSN 6650-01-258-5871
NSN 6685-00-834-4280
NSN 5998-01-068-6642
NSN 6620-01-658-8133
NSN 5945-01-634-0588
NSN 5895-01-466-6290
NSN 6130-01-261-1967
NSN 5915-01-266-1157
NSN 5920-00-023-8717