Threaded nut for garbage disposal air switch

I lost the threaded counter nut for my garbage disposal air switch , so I modeled a simple one . Its small , so it fits in places with little space . It should fit any standard air switch ( insinkerator and similar ) THe 3mf contanis 2 models , the normal one , and one at 105% . Depending on the tolerances on your machine , the small one might be too tight