DIAMETER: 13.60mm +/- 0.10mm
THICKNESS: 0.50mm + 0.00 /- 0.05mm
PARALLELISM: NOT SPECIFIED.
FLATNESS: NOT SPECIFIED.
EDGE BEVEL: LIGHT PROTECTIVE EDGE BEVEL, 2 PLACES.
SURFACE FINISH: 80-50 PER MIL-PRF-13830. 2 FACES.
CLEAR APERTURE: CENTRAL 11.50mm DIAMETER, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: RANDOM
COATING: NONE, UNCOATED SUBSTRATE