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 5950-00-052-7551
NSN 4140-00-189-0235
NSN 5935-00-927-2965
NSN 6320-00-731-6134
NSN 5999-01-020-9989
NSN 6610-01-398-8815
NSN 5998-01-314-4902
NSN 5985-01-529-6488
NSN 5975-00-766-8490
NSN 7035-00-915-5798
NSN 6130-01-524-7588
NSN 6110-01-478-4084