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 6320-01-512-2031
NSN 5998-00-542-9656
NSN 5945-00-099-9857
NSN 5985-01-399-8739
NSN 6610-01-618-4603
NSN 5855-00-055-1579
NSN 6620-00-542-1579
NSN 6620-01-331-6075
NSN 5999-00-560-4436
NSN 5835-00-957-3565
NSN 6650-01-633-9147
NSN 6145-01-598-9439