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 6220-01-438-9673
NSN 5935-00-595-8035
NSN 5985-00-231-1533
NSN 5935-00-823-6962
NSN 5835-01-384-3206
NSN 6220-01-603-6937
NSN 6150-00-920-1520
NSN 5835-00-393-1996
NSN 5965-00-925-1725
NSN 5960-01-507-9112
NSN 5996-01-542-8611
NSN 5999-01-487-6205