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 5930-00-073-1220
NSN 5835-01-532-9373
NSN 5930-01-248-4998
NSN 6110-00-936-2110
NSN 5975-00-006-3682
NSN 5996-00-404-6704
NSN 6240-01-501-1267
NSN 6685-00-021-6890
NSN 5855-00-149-0766
NSN 6320-01-435-5991
NSN 6130-01-360-2608
NSN 5990-00-389-0554