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 6150-01-181-6422
NSN 6105-01-655-6488
NSN 7035-01-189-6096
NSN 6130-01-072-8384
NSN 5965-01-215-3184
NSN 5998-00-753-0810
NSN 5920-01-119-3652
NSN 6650-00-629-8027
NSN 5965-01-506-5558
NSN 5996-01-146-4202
NSN 2925-00-190-5561
NSN 5910-01-462-0401