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 6620-01-118-7588
NSN 6150-01-019-8533
NSN 6645-00-559-3623
NSN 6220-01-044-5552
NSN 6145-00-984-4139
NSN 5996-01-413-3353
NSN 6110-00-392-6173
NSN 5835-01-317-4840
NSN 4140-01-440-9203
NSN 5935-01-144-1580
NSN 5950-01-500-1369
NSN 5930-00-594-9442