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 6620-01-149-9192
NSN 5925-01-057-0417
NSN 5935-01-263-9609
NSN 5920-01-192-5535
NSN 5910-01-552-2271
NSN 5998-00-957-6518
NSN 5910-01-011-5469
NSN 5835-01-502-9228
NSN 6150-01-247-7759
NSN 5895-01-076-7144
NSN 6135-01-051-7836
NSN 5985-01-445-4736