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 4140-00-193-8879
NSN 6620-00-286-5721
NSN 6685-01-024-0530
NSN 5975-00-969-6298
NSN 6650-01-322-3125
NSN 5960-00-233-5488
NSN 6135-01-041-3829
NSN 6620-00-975-5159
NSN 7035-01-287-9817
NSN 5905-01-470-0037
NSN 6145-01-592-9803
NSN 5998-00-875-5484