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 5930-01-432-1143
NSN 5930-01-526-7360
NSN 7035-01-445-3563
NSN 6240-00-239-0159
NSN 6220-01-276-8269
NSN 6685-00-893-4160
NSN 6240-01-474-5446
NSN 5855-01-208-1471
NSN 6650-01-533-1267
NSN 6650-00-542-9042
NSN 4140-01-142-3192
NSN 5975-01-075-3393