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 5999-01-566-0405
NSN 6130-00-246-2038
NSN 6145-00-753-2264
NSN 5950-01-386-4442
NSN 5910-00-663-5865
NSN 5960-00-911-3422
NSN 5835-00-065-6757
NSN 6610-00-827-8959
NSN 6620-00-675-6689
NSN 5915-00-992-0967
NSN 5999-01-415-1515
NSN 5965-01-371-1297