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 7035-00-517-8232
NSN 6240-01-249-5182
NSN 6110-01-418-2578
NSN 6130-00-156-7751
NSN 5998-01-352-8626
NSN 5895-01-467-5419
NSN 5960-01-392-6982
NSN 6320-00-025-9910
NSN 6650-00-842-5463
NSN 6130-00-878-8376
NSN 5960-01-360-3639
NSN 5930-00-130-2587