Square nut; heavy
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 6110-01-121-3929
NSN 6685-01-391-5316
NSN 6110-00-141-1966
NSN 5990-01-526-9941
NSN 6150-01-113-2054
NSN 5935-01-108-4522
NSN 5930-00-597-1475
NSN 6135-00-269-5843
NSN 6135-00-519-1325
NSN 4140-00-005-2093
NSN 5996-01-240-7085
NSN 5835-01-118-4690