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 6105-01-054-3649
NSN 5855-01-451-2992
NSN 5935-00-246-5280
NSN 6610-00-390-8471
NSN 5855-00-688-9954
NSN 5895-01-565-1045
NSN 6135-01-420-5907
NSN 7035-01-603-9715
NSN 5835-01-250-2939
NSN 6150-01-050-9119
NSN 6320-01-435-5991
NSN 5855-01-085-5354