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 5855-01-278-8922
NSN 5935-01-337-0829
NSN 6220-01-461-8811
NSN 6110-00-872-8001
NSN 5960-01-170-4057
NSN 5975-00-414-7143
NSN 5945-01-573-0944
NSN 6685-00-906-1456
NSN 5835-00-510-0890
NSN 6620-00-088-8795
NSN 5960-01-419-2167
NSN 6620-00-006-6418