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 5910-01-599-9066
NSN 6650-00-922-7075
NSN 5835-00-427-2772
NSN 6105-00-707-7498
NSN 5915-01-646-4034
NSN 6145-00-223-2885
NSN 6220-01-354-4655
NSN 5920-01-389-4136
NSN 6685-00-871-5146
NSN 5945-01-350-0053
NSN 5855-00-004-0904
NSN 5905-01-039-7374