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 5835-00-074-3700
NSN 6105-01-224-7093
NSN 5965-01-518-3296
NSN 6685-01-434-8906
NSN 5945-00-165-0911
NSN 5935-01-125-6871
NSN 5960-00-517-6206
NSN 5996-00-392-7626
NSN 5965-01-372-3593
NSN 6620-01-298-0991
NSN 5965-01-604-0220
NSN 5915-01-327-3617