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 5990-01-462-1617
NSN 6650-00-211-6302
NSN 5990-01-147-5225
NSN 5996-01-113-7676
NSN 5996-01-391-8033
NSN 5945-00-068-0816
NSN 5945-01-139-1126
NSN 5990-01-242-9653
NSN 6220-01-348-6706
NSN 6150-01-646-0820
NSN 6110-00-072-9394
NSN 6645-00-928-7208