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 6685-01-442-5741
NSN 6130-01-464-3998
NSN 5835-01-143-9143
NSN 6150-00-198-2503
NSN 5965-00-362-2158
NSN 6220-01-167-7859
NSN 6610-01-572-1715
NSN 5990-01-175-2597
NSN 6650-01-631-1955
NSN 6130-01-055-5272
NSN 5996-01-650-3525
NSN 6645-01-505-5772