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 5935-01-560-4281
NSN 5990-01-390-2177
NSN 6240-01-442-7746
NSN 5996-00-288-1829
NSN 5895-00-580-0842
NSN 6685-01-453-9951
NSN 5930-01-465-1056
NSN 5965-01-045-0247
NSN 5975-01-554-1023
NSN 6320-01-419-1225
NSN 5895-01-429-1255
NSN 6645-01-479-5364