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 5920-00-617-9909
NSN 6620-01-399-3615
NSN 6105-01-130-5901
NSN 5950-00-539-7098
NSN 5945-01-537-0202
NSN 6110-00-072-6683
NSN 5925-00-205-2767
NSN 5945-00-313-9512
NSN 5920-00-140-1492
NSN 5855-01-443-3970
NSN 5855-00-337-3679
NSN 5990-00-140-4559