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 5985-01-580-6841
NSN 5895-01-644-0096
NSN 5835-01-208-5649
NSN 4140-01-215-4935
NSN 7035-01-633-9537
NSN 6110-00-935-5351
NSN 5910-01-460-0101
NSN 5965-01-113-9061
NSN 5975-01-658-4672
NSN 6320-01-506-9439
NSN 6645-01-331-5674
NSN 5935-01-473-2672