DIAMETER: 6.00mm + 0.00mm /- 0.10mm
THICKNESS: 1.60mm +/- 0.10mm
PARALLELISM: 2 ARC SECONDS MAXIMUM.
TRANSMITTED WAVEFRONT: 1/10 WAVE MAXIMUM AT 632nm.
EDGE BEVEL: 0.20mm +/- 0.10mm X 45deg, 2 PLACES.
SURFACE FINISH: 10-5 PER MIL-PRF-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 4.5mm DIAMETER.
MATERIAL GRADE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001) +/- 1/2deg.
COATING: NONE, NOT REQUIRED.