We keep Moog servo valve filter discs in stock,and sold on amazon.
Diameter: 15.80-15.88 mm
Thickness: 3.0 mm
Here is the web on Amazon
200 microns filter disc
100 microns and 65 microns filter disc
The Moog Servo Valve Filter Disc Details:
https://www.hifilters.com/PRODUCTS/MOOG-Servo-Valves-Filter-Disk.html
Sell: sales@mesh-filtration.com