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 6610-01-212-2969
NSN 6150-01-096-1724
NSN 5835-01-268-1924
NSN 6240-01-062-7922
NSN 6645-00-192-1152
NSN 6620-00-957-9325
NSN 5930-00-925-1891
NSN 5925-01-314-8131
NSN 6135-00-078-9931
NSN 5950-01-201-2316
NSN 5998-00-817-4133
NSN 5855-01-568-5535