DIAMETER: 12.50mm + 0.00mm /- 0.10mm
THICKNESS: 3.00mm +/- 0.10mm
PARALLELISM: NOT SPECIFIED
EDGE BEVEL: PROTECTIVE EDGE BREAK, 2 PLACES.
TRANSMITTED WAVEFRONT ERROR: 1/10 WAVE MAXIMUM.
SURFACE FINISH: 40-20 PER MIL-O-13830, 2 FACES.
MATERIAL QUALITY: OPTICAL GRADE
CRYSTALLOGRAPHIC ORIENTATION: C AXIS PERPENDICULAR
TO THE FACES WITHIN 2 DEGREES.