Very highly likely to be unsustainable but it's nice that the offense has bailed out the bad pitching.
Hopefully once the offense cools down the pitching will right itself.
I think getting hits can be variable during a long season but working counts and drawing walks should be sustainable. OBP is very important because it keeps runners on base consistently and even if some hitters are struggling for hits, there's always that possibility of them going deep and still driving in runs. Not a fan of the Dave Kingman school of hitting but he was a perfect example of that.