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 6650-01-328-8363
NSN 6130-01-182-4555
NSN 5895-01-325-1044
NSN 5965-01-138-9288
NSN 5996-01-120-8910
NSN 6110-01-568-8595
NSN 6685-01-297-6219
NSN 5965-01-124-8772
NSN 5835-01-131-2027
NSN 6105-00-419-2573
NSN 5990-00-827-0684
NSN 5998-01-647-9169