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 5975-01-101-2047
NSN 5915-00-600-6393
NSN 6320-01-521-1764
NSN 6130-01-547-7437
NSN 5925-00-061-4619
NSN 6620-01-629-4045
NSN 5910-01-365-0093
NSN 5935-00-256-7572
NSN 6620-01-568-7140
NSN 5999-01-152-4200
NSN 5996-01-444-4547
NSN 5835-00-063-0390