Material is copper c2700
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 5975-01-233-5736
NSN 5855-00-586-6255
NSN 6650-01-345-4306
NSN 6145-00-622-4634
NSN 6135-01-051-7836
NSN 5985-00-285-8466
NSN 5835-01-257-0154
NSN 6240-00-432-7639
NSN 5999-00-847-1541
NSN 5920-01-535-0796
NSN 6620-01-306-1347
NSN 6130-00-153-3136