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 6650-01-327-3068
NSN 5945-01-545-7126
NSN 5930-01-480-2114
NSN 6320-00-521-9350
NSN 5835-01-328-6626
NSN 5985-01-643-2746
NSN 6685-00-012-3734
NSN 6645-00-658-7838
NSN 5960-00-136-7046
NSN 5910-01-377-1981
NSN 5965-01-492-5695
NSN 5855-00-494-9581