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 4140-01-141-7692
NSN 5920-01-120-0994
NSN 6145-01-300-3728
NSN 5945-01-200-3672
NSN 6650-01-489-5394
NSN 5905-00-099-9995
NSN 5835-00-351-9459
NSN 5998-01-302-7563
NSN 5960-00-829-6227
NSN 6105-01-523-9973
NSN 5935-01-580-2181
NSN 6220-01-427-2333