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 5975-00-400-7953
NSN 6135-00-968-8594
NSN 5945-00-287-8022
NSN 6240-01-416-7528
NSN 5925-01-598-1186
NSN 5990-00-067-6791
NSN 6130-01-235-9103
NSN 6110-01-303-7557
NSN 5975-00-616-4291
NSN 6220-01-176-9139
NSN 6105-01-334-9807
NSN 5835-01-207-6612