Thread is metric; all sides are chamfered 10 degrees min., 20 degrees max.: nut is corrosion resistent
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 6650-01-207-0829
NSN 5985-00-908-9123
NSN 5950-01-232-7831
NSN 5990-01-300-7801
NSN 6650-00-607-1351
NSN 5915-01-171-8749
NSN 6150-01-317-8534
NSN 6105-01-133-8460
NSN 4140-01-119-5980
NSN 6105-01-577-4174
NSN 5920-01-342-3268
NSN 5895-01-330-4298