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 6610-01-187-1748
NSN 6650-00-434-0188
NSN 6105-01-166-4923
NSN 6135-01-482-7901
NSN 5965-00-234-0219
NSN 2925-01-140-8957
NSN 6150-01-616-8874
NSN 5965-01-453-7504
NSN 6150-01-571-8029
NSN 5975-01-447-5813
NSN 4140-01-210-9909
NSN 6135-01-079-7852