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 5930-01-391-6760
NSN 5998-00-568-3973
NSN 6645-00-813-3084
NSN 5925-01-497-3259
NSN 5855-01-464-5084
NSN 6610-00-755-1740
NSN 6105-00-612-5299
NSN 5935-00-970-9104
NSN 6645-01-487-4341
NSN 4140-01-455-9285
NSN 5945-01-278-0143
NSN 6220-01-386-4832