DIAMETER: 1.250″+/-.004″
THICKNESS: 0.040″+/-.003″
PARALLELISM: 0.001″/INCH MAXIMUM T.I.R.
EDGE BEVEL: 0.005″/0.010″ X 45deg, 2 PLACES.
FLATNESS: 10 WAVES/INCH MAXIMUM @ 633nm, 2 FACES.
SURFACE QUALITY: 80-50 PER MIL-PRF-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 85% OF DIAMETER FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)
COATING: BROAD-BAND ANTIREFLECTIVE COATED FOR
MAXIMUM TRANSMISSION FROM 1.0 MICRONS TO
5.0 MICRONS WITH A NORMAL INCIDENCE ANGLE
APPLIED TO ONE FACE ONLY.
MARKING: ARROW ON OD SURFACE POINTING TOWARDS THE
COATED FACE.