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 6110-00-961-1100
NSN 6145-00-421-0968
NSN 5950-00-847-7958
NSN 5990-00-269-2226
NSN 6145-01-378-4321
NSN 5930-00-967-3405
NSN 5975-01-591-3578
NSN 5965-01-578-7378
NSN 6105-00-194-5042
NSN 5999-01-574-4987
NSN 5945-01-276-5689
NSN 6320-00-937-5625