Diameter: 152.40mm + 0.00mm /- 0.25mm
Thickness: 12.45mm +/- 0.25mm
Edge Bevels: 0.50mm Maximum Face Width
x 45 Degrees, Both Edges
Parallelism: 3 Arc Minutes Maximum
Transmitted Wavefront Error: 1/2 Wave Maximum Peak-to-Valley
@ 633nm Within Clear Aperture
Reflected Wavefront Error: 1/2 Wave Maximum Peak-to-Valley
@ 633nm Within Clear Aperture,
Both Faces
Clear Aperture: Central 130.00mm Minimum Diameter, Both Faces
Surface Quality: 20-10 Per MIL-PRF-13830 Within Clear
Aperture, Both Faces
Surface Roughness: < 0.50nm RMS, Both Faces
Material Type / Quality: Sapphire, Optical Grade
Crystallographic Orientation: c-Plane
Coating: None, Uncoated Substrate