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 5998-01-227-2416
NSN 6130-01-399-8553
NSN 6105-00-337-0904
NSN 5960-01-502-6270
NSN 6320-01-365-2701
NSN 6610-01-291-4173
NSN 5835-01-501-0526
NSN 4140-01-577-0245
NSN 5985-00-420-1260
NSN 6220-01-249-3884
NSN 5998-01-510-9180
NSN 5975-01-299-4309