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 5975-00-240-7805
NSN 6240-01-035-8525
NSN 5998-01-137-1034
NSN 5999-00-042-9561
NSN 5985-01-502-6841
NSN 6110-00-826-0394
NSN 5855-01-513-7561
NSN 5895-01-533-1698
NSN 6220-01-222-9045
NSN 5920-00-601-2390
NSN 6620-01-391-9829
NSN 6220-01-107-4400