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 5999-00-147-9978
NSN 5910-01-450-3622
NSN 6610-00-194-0676
NSN 5905-01-147-4876
NSN 4140-01-394-5720
NSN 5998-01-265-1366
NSN 6220-01-159-2631
NSN 6130-00-338-9448
NSN 5985-01-049-7190
NSN 5960-01-060-4375
NSN 5996-01-546-4194
NSN 6220-01-343-5753