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 6240-01-461-2768
NSN 5905-00-400-4092
NSN 5915-01-029-9001
NSN 6610-00-736-5457
NSN 6220-00-488-4332
NSN 7035-00-403-5340
NSN 6145-00-590-8642
NSN 5910-01-350-0400
NSN 6610-00-704-9754
NSN 6620-01-168-1615
NSN 5996-01-208-5045
NSN 5975-00-007-1925