Diameter: 0.687″+.000″/-.002″
Thickness: 0.4975″+/-.0025″
Edge Bevels: Light Protective Bevel, Both Edges
Parallelism: 5 Arc Minutes Maximum.
Flatness: 4 Waves Maximum @ 633nm,Both Faces
Surface Quality: 60-40 Per MIL-PRF-13830, Both Faces
Material Type / Quality: Sapphire, Optical Grade.
Crystallographic Orientation: c-Plane
Coating: None, Not Required