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 6150-00-246-6673
NSN 5915-01-578-9453
NSN 5985-00-926-8659
NSN 5998-00-603-9400
NSN 6645-00-390-7657
NSN 6650-00-197-7563
NSN 5920-01-653-0019
NSN 6610-01-305-0954
NSN 6610-00-405-4689
NSN 6135-01-111-1495
NSN 4140-01-320-1179
NSN 5895-01-322-1307