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 5985-01-367-7167
NSN 6320-01-067-0474
NSN 6150-00-142-9142
NSN 6110-00-498-4893
NSN 5960-01-526-3843
NSN 5915-00-063-3689
NSN 5920-01-381-2597
NSN 5930-01-252-6103
NSN 5895-00-753-5349
NSN 4140-01-474-2931
NSN 6685-01-420-5764
NSN 5835-00-275-0584