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 6610-01-376-9199
NSN 4140-00-139-0701
NSN 5925-01-235-2060
NSN 6620-00-770-9794
NSN 5910-01-610-4240
NSN 5835-00-350-3703
NSN 5996-00-995-3222
NSN 5905-00-546-5060
NSN 5925-00-186-8669
NSN 5925-01-092-1005
NSN 5930-01-363-8825
NSN 5999-01-095-8638