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 5950-01-519-2069
NSN 5985-00-659-9509
NSN 5835-01-522-1023
NSN 5935-00-269-5516
NSN 5985-00-851-4733
NSN 5915-01-508-4199
NSN 6620-01-477-3720
NSN 5835-00-835-7838
NSN 6130-00-937-6990
NSN 5930-01-501-2332
NSN 7035-01-331-5614
NSN 5920-01-497-0187