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 5925-00-479-7442
NSN 6130-01-360-5637
NSN 4140-01-038-6626
NSN 6135-01-618-2199
NSN 5950-01-590-0439
NSN 5996-00-050-0907
NSN 5905-01-227-5470
NSN 5935-00-972-3152
NSN 7035-00-295-0451
NSN 2925-01-434-6945
NSN 5945-01-168-8746
NSN 5935-00-813-4541