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 6610-01-508-6272
NSN 5999-01-419-5008
NSN 5855-00-472-2055
NSN 5965-00-856-0552
NSN 6650-01-327-4122
NSN 6645-01-126-7020
NSN 6620-01-210-9002
NSN 5910-00-287-3258
NSN 5945-00-443-0003
NSN 5965-01-185-9521
NSN 6610-01-568-8732
NSN 6145-01-102-1001