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 5910-01-459-4502
NSN 6610-01-320-6628
NSN 5930-01-569-7854
NSN 7035-00-215-3272
NSN 5895-00-503-1720
NSN 6650-01-425-7362
NSN 5835-01-396-0640
NSN 7035-00-371-7749
NSN 7035-01-422-9483
NSN 5895-01-440-8522
NSN 5960-01-530-6302
NSN 5855-01-364-1005