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 5925-00-554-4114
NSN 6610-01-573-5949
NSN 2925-01-612-0405
NSN 6240-00-813-6328
NSN 5985-01-649-7995
NSN 5855-01-658-4510
NSN 6240-00-060-4051
NSN 5855-00-494-9581
NSN 6650-01-327-4122
NSN 5990-01-459-9533
NSN 5975-01-580-6034
NSN 5996-01-469-6003