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 5895-01-355-8067
NSN 5965-00-244-6055
NSN 5910-01-567-9087
NSN 5945-01-167-4743
NSN 5905-01-444-2300
NSN 2925-00-852-6708
NSN 5855-01-389-8884
NSN 6110-00-525-3418
NSN 5910-00-293-8196
NSN 6610-00-012-4624
NSN 6220-01-526-8359
NSN 4140-01-277-6355