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 6650-00-561-0740
NSN 7035-01-227-2546
NSN 6320-00-194-4252
NSN 5925-01-495-9145
NSN 5996-00-559-9718
NSN 6110-01-388-1723
NSN 6645-01-633-1852
NSN 5920-01-579-3754
NSN 6150-01-659-2835
NSN 6620-00-335-9462
NSN 5960-01-389-4055
NSN 5960-01-414-1677