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 5855-01-085-5354
NSN 5985-00-038-7401
NSN 6105-01-381-2496
NSN 5999-01-367-6789
NSN 6150-01-550-8365
NSN 4140-01-634-0330
NSN 6110-01-241-1874
NSN 4140-01-400-3610
NSN 5990-01-377-7762
NSN 5998-00-292-9515
NSN 6110-01-406-2934
NSN 6145-01-388-8818