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 6130-00-826-8284
NSN 5910-01-355-2149
NSN 5985-00-192-7098
NSN 5925-01-446-4792
NSN 5999-01-568-2148
NSN 6650-00-184-1581
NSN 5925-01-031-4585
NSN 5835-01-203-7318
NSN 5935-00-890-0606
NSN 6105-00-038-0683
NSN 5895-00-768-2842
NSN 6610-00-450-4875