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 4140-00-241-0065
NSN 5905-00-482-7728
NSN 5945-01-430-2222
NSN 5835-00-092-1136
NSN 5950-01-173-6317
NSN 5895-00-166-6200
NSN 6240-00-005-4869
NSN 5945-01-329-8993
NSN 5835-00-537-7780
NSN 6650-01-125-4989
NSN 5950-01-166-1790
NSN 5905-01-634-0595