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 6610-01-484-3161
NSN 6685-01-434-0712
NSN 5996-00-388-6552
NSN 5905-01-619-6297
NSN 5960-01-230-6380
NSN 5835-00-113-6090
NSN 6135-01-612-6991
NSN 6240-01-565-6276
NSN 6620-01-093-7592
NSN 5910-01-453-0419
NSN 6685-00-332-2655
NSN 5998-01-455-3505