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 5925-01-374-3831
NSN 5965-01-352-4906
NSN 5960-01-558-7787
NSN 5855-01-658-4510
NSN 4140-01-467-4773
NSN 5985-01-103-6947
NSN 4140-01-537-0837
NSN 6240-01-191-5643
NSN 2925-01-224-1885
NSN 5990-00-016-5648
NSN 6610-01-439-0711
NSN 4140-00-434-5001