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 5985-01-612-7831
NSN 6650-01-273-3152
NSN 6620-00-658-6588
NSN 6240-01-332-6892
NSN 6150-00-284-9133
NSN 5855-00-149-0766
NSN 4140-00-155-8012
NSN 5990-01-460-6390
NSN 6645-00-276-7544
NSN 6620-01-327-0291
NSN 7035-01-155-0153
NSN 6145-01-195-0332