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 6320-01-446-5985
NSN 6320-00-036-3688
NSN 5985-00-438-1609
NSN 6220-01-524-5966
NSN 5905-00-192-5863
NSN 5935-00-731-5142
NSN 6240-01-643-4535
NSN 6645-00-033-8714
NSN 5920-00-761-0134
NSN 6105-00-420-8798
NSN 5990-00-049-8887
NSN 6135-01-442-7275