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 5998-01-004-7319
NSN 5985-01-419-8847
NSN 6135-01-503-1688
NSN 6110-01-375-0868
NSN 7035-01-435-4009
NSN 5965-01-270-1039
NSN 5999-01-657-1577
NSN 5996-00-934-8729
NSN 6130-01-365-9606
NSN 6685-00-004-7438
NSN 6145-00-918-3187
NSN 5910-01-156-1552