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 5925-00-389-6433
NSN 6105-01-322-7653
NSN 5835-01-463-2334
NSN 5985-01-156-0754
NSN 5999-01-547-4009
NSN 6105-01-078-4244
NSN 5930-01-443-3553
NSN 6105-00-289-9993
NSN 6320-01-419-1225
NSN 5925-01-610-2594
NSN 5985-00-936-6924
NSN 7035-01-429-7954