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 6110-01-090-0804
NSN 6220-01-293-2628
NSN 5915-01-478-7464
NSN 5905-00-854-3264
NSN 5915-01-382-8156
NSN 5960-00-443-1483
NSN 5930-00-168-6530
NSN 5965-01-367-6483
NSN 5945-00-089-6065
NSN 5835-01-416-6455
NSN 5930-01-462-0427
NSN 5915-00-363-9571