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 6110-00-636-1234
NSN 4140-00-616-1347
NSN 5998-01-114-1246
NSN 7035-01-014-3808
NSN 5915-01-188-8314
NSN 6150-00-789-7737
NSN 6610-01-367-1640
NSN 6240-01-590-1347
NSN 5915-00-224-5202
NSN 6620-00-379-2856
NSN 5835-01-157-5886
NSN 6240-01-512-4547