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 2925-00-690-8763
NSN 5855-00-156-5489
NSN 6110-01-415-5086
NSN 6105-01-423-9451
NSN 2925-01-491-3270
NSN 6130-01-486-1087
NSN 6130-01-040-0281
NSN 6650-01-460-9111
NSN 5930-00-841-8051
NSN 5835-01-045-3371
NSN 5895-01-534-4859
NSN 5990-01-343-6407