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.)
NSN 5945-01-462-3850
NSN 6620-00-555-3992
NSN 6620-00-246-5159
NSN 4140-00-945-2320
NSN 6320-01-347-2638
NSN 5895-01-542-8569
NSN 5855-01-364-9810
NSN 5945-01-572-5971
NSN 6240-00-034-5909
NSN 6135-01-278-9717
NSN 5920-00-412-0022
NSN 5965-00-615-5132