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 6620-01-063-9054
NSN 5925-01-507-2469
NSN 4140-01-005-0154
NSN 6110-01-633-9660
NSN 6135-00-812-9039
NSN 6645-01-219-5911
NSN 5925-01-353-2766
NSN 5915-01-178-8982
NSN 6130-01-226-4206
NSN 5935-00-134-9796
NSN 5996-00-186-8709
NSN 6135-01-633-2066