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 5915-01-633-9845
NSN 5930-01-280-5466
NSN 6220-01-584-2756
NSN 5945-00-692-2183
NSN 5930-01-440-9300
NSN 5950-01-389-2434
NSN 6645-01-150-2039
NSN 5905-00-912-9715
NSN 6220-00-508-9155
NSN 5960-00-060-9988
NSN 5998-01-362-5607
NSN 6685-01-090-0613