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 5950-00-538-2433
NSN 5925-00-790-3799
NSN 6105-01-492-4471
NSN 6240-01-463-5973
NSN 5996-00-786-7968
NSN 5835-00-807-5632
NSN 2925-01-285-7163
NSN 6150-00-959-9958
NSN 5910-01-345-7144
NSN 5905-01-038-9522
NSN 5920-01-406-3462
NSN 5910-00-266-8438