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 2925-01-218-5556
NSN 6105-01-466-9090
NSN 6145-01-015-1737
NSN 5915-01-424-3186
NSN 6650-00-438-3983
NSN 6220-01-085-4947
NSN 5975-00-081-2171
NSN 5895-00-590-8726
NSN 5920-00-198-4303
NSN 5945-01-601-8671
NSN 6150-01-397-2666
NSN 5925-01-534-8060