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 6240-01-474-6914
NSN 5920-01-430-1823
NSN 6650-01-306-6079
NSN 5910-01-631-1673
NSN 6110-00-150-7844
NSN 6320-01-233-5798
NSN 5915-00-691-2702
NSN 5925-01-486-4119
NSN 6220-01-529-8419
NSN 5985-01-290-2840
NSN 5960-01-212-4227
NSN 5945-01-577-0307