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 4140-00-632-6169
NSN 6645-00-754-4108
NSN 5835-01-612-4753
NSN 5930-00-679-6037
NSN 5905-01-613-8159
NSN 6240-00-615-8978
NSN 5998-01-518-6921
NSN 5930-01-157-9501
NSN 5985-01-046-5184
NSN 5950-00-108-9564
NSN 5960-00-452-0452
NSN 5960-01-476-3239