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 5965-00-285-0745
NSN 6150-00-243-9531
NSN 6685-01-588-0887
NSN 5950-01-017-3725
NSN 6240-01-054-0067
NSN 5855-01-600-4130
NSN 5835-01-614-1900
NSN 6610-01-361-9988
NSN 5920-01-329-3670
NSN 6145-00-027-9852
NSN 6130-01-153-8735
NSN 6145-00-125-0742