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 7035-00-337-8745
NSN 6135-01-521-7693
NSN 5960-00-411-3578
NSN 5950-01-401-5321
NSN 5960-01-387-5290
NSN 5935-00-438-8588
NSN 2925-01-027-1293
NSN 5935-01-144-5634
NSN 6105-00-353-8153
NSN 4140-01-128-2701
NSN 6135-01-400-2947
NSN 5895-01-278-8324