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 5855-01-028-8387
NSN 5920-01-269-8290
NSN 4140-01-298-5651
NSN 5950-00-290-8090
NSN 5965-00-170-5254
NSN 5985-01-306-0478
NSN 5930-01-554-3054
NSN 5960-00-153-7115
NSN 5935-00-229-2651
NSN 5950-00-803-0439
NSN 5915-01-322-8226
NSN 5920-00-660-6998