Fuel Selector Valve

[Skymaster337B]

Thanks for asking. But item #10 is an o-ring, around a b-nut. The gasket I'm talking about is a cork type gasket that seals the entire wing-mounted fuel selector valve body. Unfortunately the parts manual only lists it as a complete assembly. I new assembly was $15K the last time I checked...not going to happen. I will make my own gasket if I have to, but always like getting new parts if they are available...plus the maintenance down time is quicker.