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 4140-01-425-1725
NSN 5950-01-534-0364
NSN 5920-01-363-9397
NSN 5950-01-562-4068
NSN 7035-01-651-5361
NSN 5905-01-310-1864
NSN 6650-00-266-6808
NSN 5905-01-238-2400
NSN 4140-01-649-3960
NSN 5855-00-930-9478
NSN 5895-01-415-3114
NSN 6650-00-590-9073