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 4140-01-233-9662
NSN 6320-01-659-2819
NSN 2925-01-364-7926
NSN 5960-00-269-4762
NSN 5965-01-453-7504
NSN 5835-01-414-3258
NSN 6320-00-343-1798
NSN 6130-01-605-9661
NSN 5835-01-216-6208
NSN 5999-00-050-1119
NSN 6130-01-501-3961
NSN 5945-01-108-6946