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 5930-01-646-0363
NSN 5965-01-633-8849
NSN 5985-01-317-9360
NSN 6610-01-116-2527
NSN 5905-01-167-1580
NSN 4140-01-495-0865
NSN 5895-01-290-5931
NSN 6130-01-532-0567
NSN 4140-01-501-6031
NSN 5855-01-442-5401
NSN 6240-00-870-9129
NSN 6110-00-104-7401