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 6685-00-933-4122
NSN 6150-00-260-7817
NSN 5925-01-395-1019
NSN 6130-01-529-9670
NSN 4140-01-575-5362
NSN 5920-01-389-4136
NSN 6110-01-565-1761
NSN 5985-01-370-4978
NSN 6145-00-905-3236
NSN 5996-01-526-3786
NSN 5895-01-501-4485
NSN 6130-00-994-2283