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 4140-01-442-9878
NSN 5905-01-324-0497
NSN 5895-00-418-4639
NSN 6650-01-049-5361
NSN 5990-01-029-0868
NSN 6110-01-415-9333
NSN 5835-00-238-1516
NSN 6240-01-379-9545
NSN 6320-01-484-7734
NSN 5990-01-407-6615
NSN 5990-00-049-8887
NSN 5910-00-812-2752