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 5996-00-560-7867
NSN 4140-01-350-0839
NSN 5950-01-428-7776
NSN 6685-01-414-5516
NSN 6645-00-547-4388
NSN 5996-00-237-3340
NSN 5945-01-608-4853
NSN 6105-00-258-2157
NSN 2925-01-464-3093
NSN 5950-01-660-6398
NSN 6645-01-177-6021
NSN 5895-00-467-9997