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 6135-01-304-8652
NSN 6650-01-428-9958
NSN 6240-00-607-4303
NSN 5945-00-387-2694
NSN 6150-00-173-3964
NSN 5985-01-431-5813
NSN 6145-01-047-2080
NSN 5905-00-827-0728
NSN 5945-01-461-3661
NSN 5855-01-378-1888
NSN 6320-00-593-0379
NSN 5975-00-769-5564