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 6610-01-633-8931
NSN 6650-01-606-5725
NSN 5999-00-100-5761
NSN 5835-01-485-0210
NSN 5895-00-597-8725
NSN 5996-01-154-1064
NSN 5835-01-237-8486
NSN 5965-00-417-8182
NSN 5910-00-919-7704
NSN 5835-01-386-4027
NSN 5920-00-306-4872
NSN 5950-01-369-0823