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 5985-01-625-7478
NSN 5920-01-441-9363
NSN 5935-00-446-4441
NSN 5835-01-141-4975
NSN 5996-01-361-8299
NSN 4140-01-447-4826
NSN 5960-01-257-0225
NSN 6130-01-312-5523
NSN 6220-00-557-4114
NSN 5950-01-046-8661
NSN 5905-00-394-1528
NSN 5950-01-463-1374