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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5910-00-231-5833
NSN 5905-01-476-8224
NSN 6105-00-113-0679
NSN 4140-01-412-0794
NSN 2925-01-645-2948
NSN 6110-00-518-2998
NSN 6645-01-337-8292
NSN 6650-00-398-1821
NSN 5965-00-073-3488
NSN 6610-01-526-2054
NSN 5925-01-208-1475
NSN 5945-00-473-2429