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 5975-00-187-7728
NSN 4140-01-266-1696
NSN 5905-00-943-6837
NSN 5925-01-044-5508
NSN 4140-01-196-6331
NSN 5855-00-058-1293
NSN 5950-00-401-7396
NSN 5915-01-426-8862
NSN 2925-01-527-8745
NSN 5935-01-469-0658
NSN 5996-00-525-1777
NSN 5910-01-467-2404