I would say no, they probably won't work. FM crystals are generally not interchangeable between manufacturers, due to them using different intermediate frequencies. Hitec even has 2 different types of Rx crystals (single conversion and dual conversion) that are not interchangeable.
Yes, you can use Futaba module in Hitec radio (or vice versa), but AFAIK you also have to use Futaba crystals (and maybe Rx?) at the same time. Also with universal Rx's you always have to use crystals from your radio manufacturer.
I'm not 100% certain that everything I just wrote is true, but anyway, it's just a word of warning. I've never done this mix-and-match thing myself (never had to, always used Futaba
), but I've seen it done and this is what I've gathered from the stories.