Length: 4.750″+.000″/-.005″
Width: 0.750″+.000″/-.006″
Thickness: 0.750″+/-.003″
End Radii: 0.375″+/-.0015″ (Full Radius Both Ends)
Edge Bevels: 0.325″ Nominal x 30 Degrees +/- 0.0025 Degree
All-round One Face Only to Form a 4.375″ Nominal
x 0.375″ Nominal Viewing Area.
1/32″ Nominal X 45 Degrees, All-round Other Face.
Parallelism: 3 Arc Minutes Maximum
Flatness: 10 Waves / Inch Maximum @ 633nm, Both Faces.
Surface Quality: 20-10 Per MIL-PRF-13830, Both Faces.
Material Type/quality: Sapphire, Optical Grade.
Crystallographic Orientation: c-Plane
Coating: Not Required