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 6220-01-532-6880
NSN 5965-00-879-7287
NSN 6105-00-726-6987
NSN 5855-01-018-1247
NSN 6650-01-629-7836
NSN 6220-01-476-8889
NSN 5835-01-332-2867
NSN 5945-01-580-9745
NSN 5999-00-249-2830
NSN 5945-00-625-6357
NSN 6320-01-585-8468
NSN 6220-00-454-0785