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 5985-00-300-3970
NSN 5920-01-656-5279
NSN 6610-01-159-0438
NSN 5945-00-775-0798
NSN 6610-01-648-9997
NSN
NSN 6150-00-500-1975
NSN 6105-01-430-0127
NSN 6105-01-562-9493
NSN 6150-00-345-7917
NSN 6620-01-140-4405
NSN 5915-01-466-6108