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 6320-01-659-2819
NSN 6130-01-458-9631
NSN 6645-00-825-5677
NSN 5965-01-014-3456
NSN 5895-01-198-2228
NSN 5855-00-560-0110
NSN 6650-01-225-0176
NSN 4140-01-603-3104
NSN 5950-01-150-2298
NSN 5965-01-613-4794
NSN 5999-01-415-7246
NSN 5996-01-596-3039