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 6240-01-061-7359
NSN 5985-00-801-7435
NSN 5965-00-543-1837
NSN 5910-00-509-5843
NSN 5990-01-012-0613
NSN 4140-00-187-6086
NSN 5910-01-104-3917
NSN 6105-01-512-2756
NSN 6650-01-035-9350
NSN 6130-01-370-5836
NSN 5915-01-367-7420
NSN 5920-01-583-4433