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 5935-01-556-5571
NSN 5996-01-241-5255
NSN 6135-00-643-4843
NSN 6110-01-420-2702
NSN 6320-01-206-6465
NSN 5960-01-157-7009
NSN 5855-01-550-3715
NSN 5945-01-089-5753
NSN 5960-01-476-5686
NSN 5835-00-725-2087
NSN 6220-00-407-3242
NSN 2925-00-051-1467