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 6645-00-171-9639
NSN 5990-00-254-4825
NSN 5910-01-295-6439
NSN 5835-00-711-3371
NSN 6145-01-356-0145
NSN 5935-00-465-7826
NSN 6135-00-240-3200
NSN 5998-00-269-5444
NSN 5915-01-325-9426
NSN 5999-01-211-6487
NSN 5930-01-302-0732
NSN 5920-00-378-1395