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 4140-00-256-1471
NSN 6130-00-191-9571
NSN 6685-00-175-8227
NSN 5935-00-283-8322
NSN 5965-01-033-9352
NSN 6240-01-055-9696
NSN 5998-01-568-2965
NSN 5920-01-456-6504
NSN 5975-00-102-0126
NSN 6240-00-646-6931
NSN 5930-01-430-2510
NSN 6110-00-439-4088