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 7035-01-633-9537
NSN 5895-01-634-0630
NSN 2925-01-567-8027
NSN 5998-01-299-5418
NSN 5935-00-062-1173
NSN 6320-01-301-4699
NSN 5915-01-355-5777
NSN 2925-00-838-7164
NSN 6105-01-388-4514
NSN 6110-00-553-8816
NSN 5985-00-446-4107
NSN 5950-00-608-2144