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 6150-01-039-6886
NSN 7035-00-193-2269
NSN 5985-01-053-0932
NSN 5835-01-281-1655
NSN 6105-01-292-9756
NSN 6110-00-172-6126
NSN 5965-01-580-0572
NSN 7035-01-337-1729
NSN 6240-01-292-6374
NSN 5998-01-634-0604
NSN 5915-00-341-6505
NSN 5930-00-584-4484