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 6645-01-351-6900
NSN 6220-01-577-4845
NSN 5985-00-104-5981
NSN 5935-01-633-1831
NSN 5990-01-328-9846
NSN 5915-01-643-8429
NSN 6145-00-174-6962
NSN 6650-01-249-3201
NSN 6135-00-793-1809
NSN 5930-01-611-1198
NSN 6105-00-288-5872
NSN 5920-00-705-2916