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 5935-00-481-2096
NSN 6645-01-386-6311
NSN 5990-01-551-9506
NSN 6645-00-270-6817
NSN 5975-00-990-7024
NSN 5945-00-822-9618
NSN 6150-01-044-8803
NSN 5935-01-634-0668
NSN 6685-01-443-1564
NSN 4140-01-129-2239
NSN 6145-00-188-3657
NSN 5998-00-422-0963