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 6650-00-760-1385
NSN 5920-01-517-8474
NSN 6650-01-381-6978
NSN 5960-00-905-7530
NSN 6610-01-582-1876
NSN 5835-00-911-6330
NSN 5990-00-484-3189
NSN 6610-01-398-1094
NSN 6650-01-134-3644
NSN 6650-00-177-6390
NSN 6110-00-310-3470
NSN 6150-01-096-7616