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 5935-01-222-2275
NSN 5895-01-612-8476
NSN 6645-01-064-3711
NSN 5910-01-201-0299
NSN 6320-00-578-6898
NSN 6110-01-420-4284
NSN 5910-01-281-2189
NSN 6150-01-511-4481
NSN 5999-01-634-0576
NSN 6685-01-395-7062
NSN 5975-00-551-3152
NSN 4140-00-368-4261