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 6620-01-043-2595
NSN 6685-01-429-5445
NSN 5930-00-340-2932
NSN 6150-01-545-6773
NSN 6685-00-780-7787
NSN 5855-00-137-6548
NSN 5965-01-267-8536
NSN 5998-01-085-3453
NSN 6130-01-024-5951
NSN 6240-01-306-0069
NSN 5945-01-475-4950
NSN 5895-01-569-7812