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 6135-01-260-7180
NSN 5920-00-526-0462
NSN 6220-01-131-8076
NSN 5910-01-211-9243
NSN 6105-00-264-0355
NSN 5835-00-275-0584
NSN 6145-00-683-5353
NSN 4140-01-487-7425
NSN 5945-00-891-2617
NSN 6220-00-051-4198
NSN 5895-00-814-8462
NSN 5950-00-645-1143