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 6240-01-130-1505
NSN 5998-01-335-9346
NSN 5920-01-349-9475
NSN 6135-00-461-3590
NSN 6320-00-270-8222
NSN 6610-00-107-1944
NSN 6220-01-577-9314
NSN 5895-00-726-4831
NSN 5950-01-319-2406
NSN 6110-00-011-3711
NSN 6645-01-153-2090
NSN 6620-00-155-2608