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 5996-01-249-5067
NSN 6150-01-629-2402
NSN 6145-00-502-1828
NSN 5960-00-224-6063
NSN 5998-01-012-2925
NSN 6220-00-476-9649
NSN 6105-00-501-4768
NSN 6105-01-087-6925
NSN 6105-01-018-3677
NSN 5935-01-273-4392
NSN 4140-01-343-1554
NSN 6610-00-880-1914