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 5998-01-153-2689
NSN 6620-01-194-1081
NSN 5999-01-569-6354
NSN 5975-01-077-4211
NSN 5915-01-375-5804
NSN 5950-01-245-9562
NSN 6220-01-158-8073
NSN 5999-01-382-7591
NSN 5935-01-503-4533
NSN 6135-01-480-8121
NSN 5835-00-918-8169
NSN 5945-01-156-6457