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 5905-01-483-1701
NSN 2925-00-185-1618
NSN 6610-01-390-6925
NSN 5965-00-069-8886
NSN 5895-00-248-2392
NSN 6145-00-348-4320
NSN 5950-01-049-7666
NSN 5925-01-049-1289
NSN 6220-01-496-4988
NSN 2925-01-106-3552
NSN 6320-01-462-2295
NSN 5990-00-412-4411