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 6645-01-600-2080
NSN 5920-00-246-5992
NSN 5835-01-446-6065
NSN 6105-01-248-0828
NSN 5965-00-187-5523
NSN 7035-00-541-8516
NSN 6150-00-539-9812
NSN 5945-00-907-5673
NSN 5999-01-464-2945
NSN 6610-01-179-8352
NSN 6620-01-400-2928
NSN 4140-01-534-2552