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 4140-00-371-2269
NSN 5965-01-599-0799
NSN 5950-01-153-2377
NSN 5960-00-152-9488
NSN 5996-01-523-3834
NSN 6320-00-422-1773
NSN 5945-01-419-6732
NSN 6610-01-459-4870
NSN 5915-01-140-3783
NSN 6240-00-189-2762
NSN 6130-00-343-1660
NSN 6685-01-138-6145