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 6130-01-608-9620
NSN 5835-01-432-8801
NSN 4140-01-322-3227
NSN 5998-01-181-6051
NSN 5975-01-173-5877
NSN 6145-01-537-5685
NSN 6685-00-911-1596
NSN 5930-00-861-5943
NSN 5998-01-246-5252
NSN 5835-01-416-6455
NSN 5895-01-453-8425
NSN 6685-01-099-4046