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 4140-00-657-4964
NSN 5855-01-027-1571
NSN 6620-01-476-7355
NSN 5920-00-792-4417
NSN 6105-01-100-4613
NSN 5855-01-508-1707
NSN 5998-00-935-2510
NSN 4140-01-624-0444
NSN 5999-00-655-3867
NSN 5998-00-936-9998
NSN 5960-01-063-6846
NSN 6130-00-794-8653