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.)
Classification: Nuts of iron or steel
NSN 4140-01-484-1940
NSN 5965-00-831-2134
NSN 6650-00-868-9092
NSN 6145-01-357-2182
NSN 6240-00-113-1912
NSN 5996-01-237-1615
NSN 6105-00-889-6961
NSN 5975-01-643-0767
NSN 5999-00-189-0772
NSN 6645-01-326-7316
NSN 5930-00-277-4704
NSN 5965-00-161-4578