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 6150-00-379-2630
NSN 6240-01-238-5374
NSN 5990-01-510-4699
NSN 5895-01-331-8811
NSN 6110-01-580-7147
NSN 5835-00-257-2852
NSN 5895-00-716-2798
NSN 5930-01-371-3070
NSN 5985-01-312-3845
NSN 5965-00-400-6228
NSN 6240-00-252-7695
NSN 5895-00-126-9104