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 6135-01-648-0057
NSN 6240-01-425-1659
NSN 6110-00-409-1115
NSN 5935-01-545-2977
NSN 5910-00-526-0694
NSN 5975-01-552-6938
NSN 5985-00-272-7451
NSN 5999-00-993-3375
NSN 5998-00-831-5786
NSN 6220-01-062-2077
NSN 5985-01-508-4226
NSN 5920-01-492-5788