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 6650-00-137-5859
NSN 5930-00-935-4539
NSN 6645-01-018-4815
NSN 6610-01-559-5073
NSN 5920-01-513-1997
NSN 5835-00-892-3510
NSN 2925-00-947-3181
NSN 5985-01-457-7716
NSN 5985-01-081-9351
NSN 5925-01-541-5290
NSN 6620-00-725-7289
NSN 6145-01-329-9634