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 5990-01-061-5618
NSN 6320-00-456-0836
NSN 6610-01-037-4392
NSN 6150-00-107-8208
NSN 6220-00-503-2831
NSN 6645-01-590-6385
NSN 7035-00-830-1235
NSN 4140-00-058-1355
NSN 5925-01-012-9800
NSN 5990-01-317-5743
NSN 5945-01-555-3075
NSN 6650-00-098-6128