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 5930-00-188-9880
NSN 5915-01-380-2139
NSN 5905-01-386-5846
NSN 5935-00-590-2482
NSN 6130-00-630-0644
NSN 6220-01-188-1806
NSN 5985-01-375-2482
NSN 5999-01-388-0377
NSN 5905-00-659-3904
NSN 5990-00-917-4220
NSN 6105-01-440-9271
NSN 5930-00-189-9346