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 6130-01-418-0786
NSN 6130-01-553-1482
NSN 5925-01-628-0085
NSN 5975-01-194-3419
NSN 6685-01-199-5911
NSN 5920-01-464-3105
NSN 6240-00-607-4303
NSN 5935-00-884-5847
NSN 6220-01-600-3592
NSN 6220-01-024-9444
NSN 6610-01-457-1974
NSN 5975-00-933-8982