I believe so. The one we have is the f2a -3 i think. 
No, we don't. We have the B-239, which isn't particularly related to any of the US variants (though I think it's closest to the F2A-1) and was exclusively used by the Finns. The B-239 was a heavily stripped-down export version that removed the radio, most of the armor, and I believe all the US instrumentation, gunsights, etc, before they were sent overseas.
The F2A-3 was heavily overloaded and underpowered, and had completely different performance capabilities.
The Brewster variants are pretty confusing to keep track of, though. You had several B-339s, whose characteristics varied significantly depending on who got them:
By all accounts, the B-339C and D sent to the Dutch were fairly sweet machines that acquitted themselves well against the Ki-43, as like the 239 was stripped of much of the excessive weight that plagued the F2A-3. The Dutch were just overwhelmed by sheer numbers.
The B-339E the British got, on the other hand, was as badly overloaded as the F2A-3 (if not WORSE, as it received a less powerful engine than the US and Dutch Brewsters).