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 5975-00-023-1937
NSN 4140-00-223-8607
NSN 5920-01-085-8374
NSN 6105-01-387-1120
NSN 5990-01-510-4699
NSN 4140-01-301-7336
NSN 5905-00-132-6893
NSN 5930-01-445-6695
NSN 5905-00-197-4841
NSN 6105-01-173-2283
NSN 6110-01-633-9660
NSN 5990-01-103-3572