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 6685-01-120-8293
NSN 6150-00-596-4974
NSN 5975-00-565-1071
NSN 6145-01-257-4465
NSN 4140-00-012-3506
NSN 5965-01-342-2865
NSN 5999-01-601-2064
NSN 6220-00-404-8004
NSN 6110-01-147-0656
NSN 6650-01-435-0831
NSN 5950-01-627-4779
NSN 6150-01-556-7388