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 5920-01-658-6791
NSN 6610-00-191-5317
NSN 5930-01-054-0350
NSN 6620-01-290-8209
NSN 6110-01-337-0223
NSN 5935-00-633-8302
NSN 5990-01-103-3572
NSN 6145-00-871-9112
NSN 6150-00-652-1140
NSN 6145-00-800-9870
NSN 2925-01-394-9658
NSN 5960-00-824-0052