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 5965-00-275-0491
NSN 5915-01-306-9164
NSN 5965-01-042-2001
NSN 5985-00-270-3169
NSN 5950-01-234-6441
NSN 6135-00-228-8140
NSN 5835-00-170-5238
NSN 6650-01-493-6638
NSN 6150-01-185-1862
NSN 5998-00-445-6115
NSN 6130-01-193-0471
NSN 5998-01-604-6189