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 5990-01-481-3080
NSN 5998-00-003-9789
NSN 4140-01-183-7174
NSN 6610-00-523-7187
NSN 5998-01-365-2688
NSN 5965-01-048-4767
NSN 6220-01-468-5596
NSN 2925-01-054-3190
NSN 6645-01-225-4768
NSN 5835-01-508-2528
NSN 5965-00-163-1791
NSN 5910-00-629-8345