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 5910-00-593-9699
NSN 5998-00-823-4776
NSN 5905-01-491-5679
NSN 5915-01-426-8862
NSN 6135-00-243-8330
NSN 5950-01-355-4241
NSN 6145-01-358-6049
NSN 5915-00-422-5222
NSN 5835-00-059-5854
NSN 6240-01-463-3664
NSN 5985-00-692-1550
NSN 5935-00-391-6275