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 5930-00-644-9537
NSN 6105-01-019-8008
NSN 6135-00-782-6988
NSN 5945-00-928-4936
NSN 5935-01-538-0676
NSN 6130-01-526-3419
NSN 5910-01-108-1145
NSN 6240-00-226-0462
NSN 5920-00-081-9156
NSN 5985-01-496-2702
NSN 6645-00-171-9251
NSN 5998-01-158-6067