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 6620-01-288-8249
NSN 5925-01-336-1928
NSN 5935-00-639-1382
NSN 6620-01-112-6440
NSN 6650-00-957-9985
NSN 4140-01-050-2022
NSN 5985-00-153-4205
NSN 6610-00-100-1195
NSN 6650-01-545-4037
NSN 5895-01-277-0035
NSN 6240-01-096-2506
NSN 2925-01-049-8906