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 6645-01-407-0204
NSN 6220-01-406-5310
NSN 6105-00-264-0355
NSN 5975-00-360-2166
NSN 5996-01-048-5196
NSN 5915-01-028-5877
NSN 5855-01-415-3987
NSN 6110-00-242-6216
NSN 6105-01-388-4514
NSN 5855-01-521-1922
NSN 6610-01-552-3708
NSN 5835-01-303-6563