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 5920-00-570-6594
NSN 5960-00-615-9972
NSN 5965-01-187-8574
NSN 5999-01-387-6628
NSN 5925-01-444-2746
NSN 5998-01-158-3006
NSN 7035-00-497-8784
NSN 5935-01-396-0843
NSN 5925-01-245-1410
NSN 4140-01-417-2611
NSN 6240-01-432-0819
NSN 5996-00-947-0804