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 6685-01-611-3036
NSN 5930-01-012-3245
NSN 5835-00-257-2852
NSN 6145-01-146-5555
NSN 5975-01-469-6400
NSN 6685-00-631-4739
NSN 6150-01-149-0178
NSN 2925-01-478-8191
NSN 6620-00-286-5721
NSN 6150-01-296-1150
NSN 5990-00-926-4324
NSN 5999-00-518-1007