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 5915-00-833-9025
NSN 6145-01-408-7156
NSN 5950-00-228-2887
NSN 6145-01-371-9575
NSN 6650-01-465-5362
NSN 5915-01-327-4692
NSN 6610-01-582-0423
NSN 7035-00-295-0451
NSN 5945-00-951-4871
NSN 6650-00-471-1117
NSN 6150-01-462-4549
NSN 5925-00-182-7452