RE: Plastic compatible with nitro
You can use neoprine rubber or silicon rubber, and latex rubber as well. I never tried the other stuff with glow fuel.
But it may work OK though. You can put a piece of the stuff into a small vial of glow fuel and wait a few hours to see what happens. Gasoline tends to dissolve most all these things, so if glow fuel doesn't dissolve it, it is probably good.
before silicon tubing became available, we used to use neoprine or the clear plastic flexible tubing like the stuff that COX engines used.
But the clear plastic tubing tended to get hard over time and wouldn't hold a seal well.