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.)
NSN 5910-00-481-3535
NSN 6610-00-690-2704
NSN 5996-01-406-2845
NSN 5910-01-091-7945
NSN 5985-00-100-0140
NSN 6145-00-128-8698
NSN 6650-00-331-2232
NSN 5855-01-217-2353
NSN 7035-01-449-1189
NSN 6105-01-132-1720
NSN 6150-00-344-2670
NSN 5910-01-145-7333