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 5910-01-601-8087
NSN 5990-01-226-6924
NSN 6105-01-224-5510
NSN 6240-01-631-8680
NSN 5835-00-764-4388
NSN 5835-01-143-9143
NSN 5950-01-024-2835
NSN 5950-01-131-2376
NSN 6220-00-049-7834
NSN 6150-00-824-0075
NSN 7035-01-049-6776
NSN 5925-00-232-3256