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 6110-01-383-4709
NSN 2925-01-268-5464
NSN 5999-01-567-2553
NSN 5965-00-543-1837
NSN 5925-01-522-0439
NSN 5999-01-551-1212
NSN 5930-01-504-2103
NSN 2925-01-348-8306
NSN 6105-01-577-5310
NSN 4140-00-122-6422
NSN 6145-01-211-6591
NSN 6220-01-517-2365