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 5998-01-017-7798
NSN 5920-00-401-0217
NSN 4140-01-549-5899
NSN 5905-00-629-3575
NSN 6650-01-472-6753
NSN 5945-01-474-6059
NSN 5990-01-584-8363
NSN 6105-01-598-4055
NSN 6110-01-330-4906
NSN 5895-01-203-2782
NSN 6610-01-422-2376
NSN 6240-01-574-0354