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 6650-01-599-9849
NSN 6610-00-552-6332
NSN 6685-00-504-1911
NSN 5996-00-973-2480
NSN 6240-00-004-2516
NSN 5910-00-276-3187
NSN 5925-01-255-1048
NSN 5855-00-436-3852
NSN 5835-00-901-1086
NSN 6150-01-644-3346
NSN 5920-01-571-8027
NSN 5905-01-277-2950