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 6650-00-877-1797
NSN 6650-01-153-8861
NSN 6620-00-844-2494
NSN 5945-00-167-7544
NSN 6240-01-282-7094
NSN 6240-01-104-7066
NSN 6150-01-080-1212
NSN 5960-01-481-8051
NSN 5855-00-862-3345
NSN 5999-01-021-8112
NSN 5835-00-221-6628
NSN 6645-00-276-7544