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 5905-01-566-0050
NSN 6650-00-195-7519
NSN 5935-01-578-5057
NSN 6130-01-069-0161
NSN 6620-01-315-5741
NSN 4140-01-412-8049
NSN 5999-01-198-4549
NSN 5930-01-143-7669
NSN 5965-01-508-1093
NSN 5975-00-751-9450
NSN 5945-00-247-8610
NSN 5996-01-580-4604