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 5990-01-423-8189
NSN 6620-00-763-2168
NSN 5999-00-610-0483
NSN 5999-00-938-2237
NSN 6320-01-506-9439
NSN 5915-01-163-4332
NSN 6145-01-302-9975
NSN 5965-01-083-4745
NSN 6135-00-782-0930
NSN 5935-00-331-2064
NSN 5930-01-508-5039
NSN 5920-01-650-1820