Diameter: 50.00mm + 0.00mm /- 0.10mm
Thickness: 0.0399″+/-.0009″
Parallelism: 1 Arc Minute Maximum
Edge Bevels: 0.015″ Maximum x 45 Degrees, Both Edges
Flatness: 6 Fringes Maximum @ 633nm Over Clear Aperture
(This Applies to the Sum of Both Surfaces)
Clear Aperture: Central 30.00mm Diameter, Both Faces
Surface Roughness: 14 Angstroms RMS Maximum, Both Faces
Surface Quality: 40-20 Per MIL-PRF-13830, 2 Faces
Material Type / Quality: Sapphire, Optical Grade
Crystallographic Orientation: c-Plane +/- 2 Degrees
Coating: None, Not Required