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 6145-01-513-9126
NSN 5920-01-649-6892
NSN 5965-00-408-5501
NSN 5965-00-455-7581
NSN 5990-01-652-7373
NSN 6135-00-309-0074
NSN 5925-01-543-1762
NSN 5960-00-824-0052
NSN 5965-00-317-1679
NSN 5960-01-142-1995
NSN 5915-01-519-5672
NSN 5950-00-201-5267