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 4140-00-090-4174
NSN 5835-00-302-5296
NSN 6150-01-227-4477
NSN 5910-00-044-1964
NSN 5960-01-467-0961
NSN 5950-00-817-9300
NSN 6685-00-914-2345
NSN 6150-01-466-6507
NSN 6135-01-186-4010
NSN 5999-00-701-9831
NSN 5925-00-222-3843
NSN 6610-00-924-2828