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 4140-01-025-0923
NSN 6130-01-496-1986
NSN 5975-01-171-3207
NSN 5999-00-258-1950
NSN 6145-00-542-7980
NSN 6135-01-438-9450
NSN 7035-01-426-4133
NSN 5975-00-665-3644
NSN 6650-00-590-9073
NSN 7035-01-045-7202
NSN 5990-00-288-1820
NSN 5990-01-291-6897