Diameter: 25.40mm + 0.00mm /- 0.10mm
Thickness: 2.000mm +/- 0.005mm
Parallelism: Controlled by Thickness Tolerance
Maximum Part to Part Variation: 1.0 Micron
Edge Bevels: 0.40mm Maximum x 45 Degrees, Both Edges
Transmitted Wavefront Error: 1/4 Maximum @ 633nm
Surface Quality: 20-10 Per MIL-PRF-13830, Both Faces
Material Type / Quality: Sapphire, Optical Grade
Crystallographic Orientation: a-Plane
Coating: None, Uncoated Substrate