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 6110-00-323-0289
NSN 5895-01-244-6807
NSN 7035-00-179-3924
NSN 5965-01-605-0090
NSN 6220-00-450-9973
NSN 5950-00-471-7665
NSN 5999-01-050-4794
NSN 5975-00-728-3224
NSN 5915-00-314-0832
NSN 7035-01-027-2259
NSN 5855-00-189-6066
NSN 6150-01-513-3754