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 6610-00-720-3237
NSN 6320-01-355-3998
NSN 5915-00-467-6796
NSN 6645-00-251-0688
NSN 5965-01-258-5662
NSN 5945-01-415-2228
NSN 5945-00-392-6434
NSN 5855-01-147-4785
NSN 5895-01-590-3840
NSN 5996-00-890-5254
NSN 5835-00-289-9080
NSN 5925-01-547-4304