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 5905-00-097-3694
NSN 6130-01-603-7153
NSN 6610-01-555-0842
NSN 6645-01-063-3371
NSN 5975-01-357-7019
NSN 5855-00-149-0766
NSN 5895-00-773-2926
NSN 6650-01-158-6888
NSN 5920-01-167-9678
NSN 6135-01-441-5746
NSN 5965-01-459-8203
NSN 6620-01-436-3502