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 6240-01-388-2413
NSN 5915-01-020-9153
NSN 6240-01-523-2050
NSN 6130-00-149-1694
NSN 5975-00-802-1498
NSN 5996-01-421-9391
NSN 5975-01-074-5768
NSN 4140-01-634-0330
NSN 6620-01-368-2723
NSN 5945-00-268-8124
NSN 5925-01-582-8458
NSN 6685-01-205-3834