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 6135-00-422-3967
NSN 5895-00-051-8347
NSN 6240-01-436-9132
NSN 5996-00-333-5182
NSN 6110-01-507-4061
NSN 6320-00-261-9136
NSN 6135-01-153-8027
NSN 6220-01-106-3215
NSN 6650-01-471-0085
NSN 5920-00-584-4592
NSN 5910-01-029-4709
NSN 6110-00-727-3691