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 4140-01-218-8620
NSN 5975-01-212-1871
NSN 5855-00-167-7893
NSN 5915-01-425-8615
NSN 5945-01-642-6805
NSN 5895-01-069-3279
NSN 6650-00-973-6945
NSN 6240-00-141-0129
NSN 5990-01-014-9383
NSN 5930-01-209-6830
NSN 6320-01-021-6633
NSN 6150-00-813-9422