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 7035-01-080-3392
NSN 6650-01-644-7722
NSN 5965-01-417-6315
NSN 5910-00-831-9058
NSN 5835-01-178-4154
NSN 5996-01-134-7638
NSN 7035-01-519-6779
NSN 5935-00-948-9625
NSN 6105-01-109-0732
NSN 5990-00-064-7839
NSN 5910-01-150-3496
NSN 6110-01-527-9769