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 5925-00-832-6841
NSN 5925-00-247-6979
NSN 6145-01-487-5171
NSN 5895-00-287-6375
NSN 5998-01-269-3641
NSN 5999-00-565-4658
NSN 5930-01-192-2364
NSN 6620-01-453-6764
NSN 5925-01-425-1842
NSN 5960-01-369-7409
NSN 5905-00-537-7261
NSN 6110-00-489-3813