I misspoke, the material would be 7075, not 2024.
The component would be submerged in fuel.
We could use 316 SS rather than the 303 SS. So the contact would be between 316 SS and 7075 AL anodized.
We have a situation where we need to take some weight out of a component. We want to switch the material to 2024 AL, but the component threads into another component made of 303 SS. The 303 SS component sees a crimp operation, so we are hesitant to change both to 2024 AL since we have dealt with...