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 5835-01-178-4154
NSN 5965-01-303-1676
NSN 5990-01-027-1869
NSN 5935-00-159-1551
NSN 5950-00-947-9123
NSN 7035-01-003-9142
NSN 6645-01-490-5948
NSN 6130-01-193-1686
NSN 5855-00-560-0110
NSN 6620-01-412-0938
NSN 5965-01-248-6345
NSN 6135-01-389-8289