DIAMETER: 0.625″+.000″/-.005″
THICKNESS: 4.00mm +/- 0.10mm
PARALLELISM: 3 ARC MINUTES MAXIMUM.
EDGE BEVEL: LIGHT PROTECTIVE BEVEL, 2 PLACES
FLATNESS: 10 WAVE/INCH MAXIMUM, 2 FACES
SURFACE QUALITY: 80-50 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: RANDOM.
COATING: NONE, NOT REQUIRED.