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 6145-01-287-6220
NSN 5935-01-490-1527
NSN 5945-01-287-8230
NSN 5915-00-439-0868
NSN 6130-00-782-0353
NSN 6130-01-597-3481
NSN 6220-00-193-3719
NSN 5965-00-182-7928
NSN 6220-00-322-2678
NSN 5960-01-112-0721
NSN 5985-01-364-6108
NSN 5990-01-540-1619