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 5935-01-307-3456
NSN 5950-01-587-6906
NSN 6685-00-512-1862
NSN 5945-01-413-8787
NSN 6135-01-317-6021
NSN 5998-01-430-3768
NSN 6130-01-438-9816
NSN 5915-01-425-8524
NSN 6610-00-654-0273
NSN 5935-00-555-2633
NSN 6650-00-958-7408
NSN 6105-01-641-7015