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 6110-01-051-1395
NSN 5895-00-815-7905
NSN 5925-00-728-2020
NSN 6110-01-113-7642
NSN 5915-00-779-4068
NSN 6685-00-144-6362
NSN 5996-01-295-0710
NSN 6110-01-204-5657
NSN 5998-01-524-7439
NSN 5996-00-468-1874
NSN 6110-01-500-3780
NSN 5935-01-648-0853