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 6110-01-388-6818
NSN 5998-00-157-6975
NSN 5945-01-262-2106
NSN 6650-00-997-4337
NSN 2925-00-203-8735
NSN 5998-01-171-4572
NSN 5910-01-579-4145
NSN 5998-00-974-5944
NSN 4140-01-610-6953
NSN 5895-01-631-9075
NSN 5895-01-039-1124
NSN 5910-01-139-4383