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 5998-00-971-2170
NSN 5930-00-965-9294
NSN 6135-01-394-6731
NSN 5855-00-235-2676
NSN 6105-01-428-6344
NSN 5960-00-269-4762
NSN 5998-01-264-1367
NSN 6620-01-508-1996
NSN 4140-01-100-1223
NSN 6610-01-200-6861
NSN 6110-01-213-0150
NSN 5945-01-104-4926