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 4140-01-400-3610
NSN 5835-01-535-0948
NSN 6240-01-615-8454
NSN 5945-00-296-8464
NSN 5996-00-754-6153
NSN 5905-01-323-6711
NSN 5965-01-249-6349
NSN 6610-01-541-5034
NSN 6320-00-343-1798
NSN 6145-01-481-3688
NSN 6110-01-623-0382
NSN 5999-00-107-1502