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 5960-01-470-1579
NSN 5998-01-544-6687
NSN 6105-01-414-9136
NSN 5998-01-432-2748
NSN 6685-01-502-9028
NSN 5996-01-540-5020
NSN 6150-01-295-4409
NSN 5998-01-203-7345
NSN 6620-01-519-2628
NSN 5895-00-409-0071
NSN 6135-01-400-2947
NSN 5925-01-392-1886