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 6150-01-191-5353
NSN 6110-00-601-2985
NSN 6220-01-477-3105
NSN 5960-01-560-8461
NSN 5925-01-479-4984
NSN 5975-00-405-4848
NSN 6645-01-508-7582
NSN 6130-00-119-3149
NSN 6240-00-342-9756
NSN 6220-01-247-4721
NSN 6620-00-169-1609
NSN 6130-01-384-2191