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 2925-01-535-7235
NSN 6650-01-323-2141
NSN 6145-01-353-0440
NSN 5935-00-607-8979
NSN 5925-00-981-9006
NSN 6110-01-633-2504
NSN 7035-01-552-5836
NSN 6145-01-384-4477
NSN 5945-00-112-4577
NSN 6145-01-457-7685
NSN 5835-00-413-4701
NSN 5920-01-600-2194