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 5930-01-238-0718
NSN 6610-01-316-2738
NSN 6145-00-791-9820
NSN 5925-01-418-2872
NSN 6220-01-056-8792
NSN 6240-01-055-5193
NSN 6135-01-098-3020
NSN 6105-00-728-7494
NSN 6150-00-042-5660
NSN 5920-01-106-9018
NSN 5915-01-525-7731
NSN 6220-00-489-1440