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 5835-01-522-9881
NSN 6135-01-574-2040
NSN 5895-01-400-0819
NSN 6150-01-359-8598
NSN 5910-00-285-6400
NSN 6620-00-509-7935
NSN 6130-01-338-7216
NSN 5905-00-798-2343
NSN 5950-01-357-0814
NSN 6645-00-279-1777
NSN 5920-01-104-4332
NSN 5998-01-549-3919