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 5975-00-632-8772
NSN 6110-01-350-3449
NSN 5996-01-476-7550
NSN 6645-01-393-4037
NSN 6150-01-152-7138
NSN 6145-00-900-0317
NSN 6645-00-420-5072
NSN 6105-01-205-0301
NSN 5925-00-041-1935
NSN 5996-01-129-2949
NSN 6145-01-646-1232
NSN 5925-01-292-6570