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 6650-01-071-1234
NSN 6135-00-628-1142
NSN 6240-00-170-5302
NSN 6130-00-553-5160
NSN 6240-00-137-0196
NSN 6135-01-475-7415
NSN 5975-00-581-7129
NSN 2925-01-658-4470
NSN 5935-00-880-1374
NSN 5925-01-192-7982
NSN 5925-01-139-3866
NSN 5945-01-503-8416