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 5960-00-401-0794
NSN 5855-01-587-4938
NSN 4140-01-057-9258
NSN 5915-01-241-1803
NSN 6650-01-070-3275
NSN 5905-01-044-7445
NSN 5999-01-426-4651
NSN 6145-00-280-8488
NSN 5915-01-446-1016
NSN 5998-01-290-4895
NSN 5965-01-331-1644
NSN 5895-00-155-4578