DIAMETER: 8.00mm + 0.00mm /- 0.20mm
THICKNESS: 2.000mm +/- 0.125mm
PARALLELISM: 30 ARC SECONDS MAXIMUM
FIGURE: POWER: 1/10 WAVE MAXIMUM WITHIN CLEAR
APERTURE, 2 FACES.
IRREG: 1/10 WAVE MAXIMUM WITHIN CLEAR
APERTURE, 2 FACES.
CLEAR APERTURE: CENTRAL 90% MINIMUM DIAMETER,
2 FACES.
SURFACE FINISH: 10-5 PER MIL-PRF-13830 WITHIN
CLEAR APERTURE, 2 FACES.
EDGE BEVEL: 0.25mm NOMINAL X 45deg, 2 PLACES.
EDGE CHIPS: PER MIL-PRF-13830.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001) NOMINAL
COATING: NONE, NOT REQUIRED.