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 6650-00-171-4175
NSN 6220-01-484-4032
NSN 6240-00-527-8614
NSN 5895-00-278-8092
NSN 6130-01-317-3170
NSN 5935-01-347-3777
NSN 5855-00-930-5131
NSN 5998-01-606-6539
NSN 6105-01-581-5113
NSN 6105-01-264-8745
NSN 5925-01-411-9736
NSN 5999-01-343-5165