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 6320-00-937-5625
NSN 6110-01-139-6930
NSN 5945-00-404-8961
NSN 5998-01-245-3704
NSN 6130-01-474-5190
NSN 6240-01-307-6999
NSN 5998-01-467-8831
NSN 5855-01-526-2012
NSN 5960-01-331-1076
NSN 5950-01-424-0068
NSN 5925-01-220-1916
NSN 5935-01-209-6850