My uneducated guess is "if it fits, it'll work to at least some extent". My Takky used a 575 Analogue board, deflector assembly, and neck PCB (from the 15" 575 CRT) with the stock Color Classic tube and it was fine. Getting it aligned was a bit of a pain.

I highly doubt that Apple commissioned a custom CRT from Sony. The real question is "How many variations did Sony make and how compatible are they with each other?"

TV tubes are usually lower quality than those intended for computer monitors, but I don't know if that's the case with tiny little 10" ones.

If you can get a donor TV cheaply enough, it seems like a reasonable thing to try.