Diameter: 2.500″ +.000″/-.005″
Thickness: 0.375″ +/-.002″
Parallelism: 3 Arc Minutes Maximum
Edge Bevel: 0.010″ / 0.015″ x 45 Degrees, Both Edges
Flatness: 10 Waves Per Inch @ 633nm Maximum, Both Faces
Surface Quality: 80-50 Per MIL-PRF-13830, Both Faces
Material Type / Quality: Sapphire, Optical Grade
Crystallographic Orientation: c-Plane +/- 2 Degrees
Coating: None, Not Required