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 5905-01-145-4552
NSN 5998-00-164-7847
NSN 5960-01-512-0233
NSN 6105-00-393-2489
NSN 6650-00-244-5648
NSN 6650-00-111-3399
NSN 6620-01-535-1230
NSN 6130-01-225-5658
NSN 5999-01-389-3529
NSN 5915-01-349-1885
NSN 4140-00-087-4611
NSN 5835-01-201-7363