File size for MS 290?

[rangeroad]

My bar doesn’t have chain info. On my Stihl 16” chain it is marked :

Y3 stamped on middle link
raker has 2 stamped on it
STIHL C stamped in various spots

I’ve tried to decipher with the Stihl chain charts but can’t seem to figure it out.

Any help appreciated!

 

[cscltd]

More than likely .325 pitch chain
Uses 3/16 file diameter