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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6620-01-503-2667
NSN 6645-01-443-0269
NSN 5960-00-368-4084
NSN 6105-01-552-0210
NSN 5965-00-789-1654
NSN 6220-00-127-0837
NSN 5935-01-234-3280
NSN 6220-00-807-3432
NSN 5996-00-597-2234
NSN 5985-01-047-5759
NSN 6610-00-808-7040
NSN 6240-00-705-7731