For longer blades, I was talking about the Nidec. It's a 38mm deep fan at least according to the one datasheet I saw, but 5" (127mm) so the blades would be a little longer. The exact model wasn't in there, so it might be that the A34538 is a deeper fan. Do you have a DS for it?
Edit: That might actually make sense.
http://www.nidecpg.com/fanpdfs/c2003_4546.pdfAll the fans in there are AXX3XX models. The AXX5XX could be 50mm vs 38mm versions.
Sorry, do not have the datasheet.
The exact model I am running is AX34538-90 as read from the sticker (and I believe that is the same in the link I gave), and it is definitely NOT a 38mm form-factor .... more like a 50mm one.
I am popping out for a while to pick my kids from school but will look again when I get back and update you.