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 2925-01-219-9471
NSN 2925-01-422-1542
NSN 5920-01-423-0805
NSN 5985-01-514-4155
NSN 6135-01-633-8502
NSN 6645-01-362-2587
NSN 5985-00-186-2927
NSN 6610-01-412-0058
NSN 5855-01-448-9794
NSN 6135-01-180-4588
NSN 5930-01-413-3992
NSN 6145-01-589-2657