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 6220-01-643-8001
NSN 5990-01-083-2430
NSN 5920-00-001-4314
NSN 5945-01-495-0509
NSN 5935-01-344-1598
NSN 5960-00-148-4493
NSN 6645-01-370-4259
NSN 5996-01-573-7850
NSN 5855-00-327-2112
NSN 6240-01-444-9956
NSN 5935-00-900-3177
NSN 5915-01-224-5594