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 6320-01-519-8767
NSN 6220-00-616-4247
NSN 5920-00-838-4683
NSN 5855-01-503-6973
NSN 5855-01-468-4996
NSN 6150-00-753-3950
NSN 7035-00-557-5570
NSN 5965-00-773-9047
NSN 6145-01-437-9078
NSN 6240-01-197-8491
NSN 5915-01-043-9673
NSN 5915-01-052-7681