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 6685-00-862-1869
NSN 6610-00-872-2597
NSN 5965-01-330-4042
NSN 5990-01-626-1249
NSN 5945-01-371-2883
NSN 6110-00-343-8183
NSN 5990-01-478-8638
NSN 5910-01-410-7749
NSN 5935-01-215-1422
NSN 6105-01-285-1157
NSN 6150-01-246-4419
NSN 5975-01-622-1688