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 5945-01-144-0415
NSN 5990-01-489-0366
NSN 5975-00-462-2911
NSN 6610-01-594-1835
NSN 6645-00-998-7820
NSN 5999-00-931-6360
NSN 5930-01-283-4435
NSN 7035-01-503-6887
NSN 5965-01-406-4164
NSN 4140-01-192-2302
NSN 5905-01-283-8842
NSN 6130-00-730-0795