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 5910-01-006-1429
NSN 5960-00-740-7285
NSN 5915-00-683-8248
NSN 6650-01-126-3101
NSN 5998-01-007-6185
NSN 6110-01-122-7801
NSN 5910-00-035-5534
NSN 5990-01-044-4767
NSN 6320-01-098-2503
NSN 6650-00-754-2276
NSN 6105-00-121-6874
NSN 5935-01-263-2000