I had to shuffle the pins around but it's almost an exact replacement for the existing fan if you want something with the same or similar specs.
You can also make a 4-pin or 3-pin connector work. You just need to shave off the piece of guide plastic on the connector that gets in the way.
I'm worried that if I modify a regular case fan that way, it might not be powerful enough to keep the antminer properly cooled. Anyway. Thanks for the link. I'll look it over.