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 5835-01-508-2528
NSN 6220-01-146-4469
NSN 6650-00-172-7519
NSN 5915-01-014-6309
NSN 6620-01-624-3933
NSN 5960-00-435-1967
NSN 5999-01-200-7992
NSN 5965-01-179-5847
NSN 6620-00-767-9415
NSN 5998-01-202-8266
NSN 5925-01-558-7630
NSN 6220-00-754-3452