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 6650-01-632-7757
NSN 5835-00-909-8088
NSN 6130-01-423-5844
NSN 6135-00-840-6451
NSN 6130-01-182-4555
NSN 4140-01-131-1110
NSN 6610-01-496-5325
NSN 4140-00-653-5245
NSN 5998-00-041-0536
NSN 5960-01-173-7956
NSN 4140-00-295-0787
NSN 6610-00-827-8959