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 5910-01-393-8496
NSN 5835-01-132-5894
NSN 5910-00-815-8547
NSN 5925-01-200-6283
NSN 5835-01-126-2480
NSN 5855-01-243-2355
NSN 5965-00-716-7078
NSN 5990-01-498-0641
NSN 6645-01-567-8282
NSN 7035-01-445-3563
NSN 7035-00-104-7613
NSN 6240-01-660-5662