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 6645-01-285-4284
NSN 5985-01-583-8642
NSN 6320-00-636-0922
NSN 5965-00-170-5254
NSN 6130-01-018-7988
NSN 5960-00-772-2994
NSN 5996-00-739-2315
NSN 6105-01-187-1538
NSN 6650-01-268-9702
NSN 5985-00-554-9730
NSN 5950-01-174-7691
NSN 5998-01-382-2096