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 7035-01-107-2811
NSN 5835-00-998-5757
NSN 6105-01-151-0303
NSN 5990-00-359-9839
NSN 5985-01-122-4047
NSN 6620-01-367-4960
NSN 5999-01-531-4982
NSN 5920-00-269-6178
NSN 5960-01-649-1341
NSN 2925-00-917-2842
NSN 5925-01-376-7569
NSN 5990-00-185-5888