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 6110-01-481-3682
NSN 6145-01-085-5556
NSN 6130-01-478-0430
NSN 5999-01-608-4318
NSN 6645-01-389-1970
NSN 6105-00-643-4975
NSN 6610-00-858-2094
NSN 5915-01-517-0374
NSN 6610-01-509-2048
NSN 6610-01-086-9545
NSN 5985-01-591-9716
NSN 5945-01-490-9969