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 5855-01-445-6551
NSN 6685-01-510-9575
NSN 5975-00-173-1810
NSN 5855-01-006-1827
NSN 6105-01-119-8515
NSN 6240-00-004-2516
NSN 6240-01-370-5242
NSN 6150-00-614-2132
NSN 5950-01-243-8415
NSN 6240-01-039-4241
NSN 5945-01-358-5663
NSN 6105-01-183-8123