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 5998-00-202-6279
NSN 5855-00-885-8452
NSN 5998-00-463-7158
NSN 7035-01-003-9142
NSN 5975-01-043-3084
NSN 5895-00-948-6426
NSN 6240-00-027-2067
NSN 5975-01-297-3879
NSN 5835-01-463-1522
NSN 6150-01-533-5296
NSN 5985-01-381-0051
NSN 4140-01-025-0923