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 6220-01-421-3335
NSN 6110-00-185-2021
NSN 6620-01-224-4985
NSN 5975-00-408-3634
NSN 5985-00-958-7511
NSN 5855-00-198-3197
NSN 6145-01-243-2980
NSN 5996-00-522-6410
NSN 5945-01-188-8797
NSN 6145-01-483-9660
NSN 6220-00-112-0629
NSN 5990-00-479-9157