Square nut; heavy
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 6110-01-259-7289
NSN 6150-01-417-2164
NSN 5905-01-590-3957
NSN 5990-00-730-4366
NSN 5985-01-023-2367
NSN 6105-01-541-2671
NSN 5935-01-645-2757
NSN 5998-01-338-2485
NSN 6130-01-645-8568
NSN 5999-00-141-9441
NSN 5910-01-147-1619
NSN 5945-01-451-4305