CONFIGURATION: DISC, PLANE-PARALLEL
DIAMETER: 60.96mm + 0.00mm /- 0.05mm
THICKNESS: 7.00mm +/- 0.05mm
PARALLELISM: < 2 ARC SECONDS
EDGE BEVELS: 0.20mm +/- 0.10mm X 45deg, 2 PLACES.
TRANSMITTED WAVEFRONT: 1/10 WAVE MAXIMUM @ 633um.
SURFACE QUALITY: 10-5 PER MIL-PRF-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 46.48mm DIAMETER.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001) +/- 2 deg
COATING: NONE, UNCOATED SUBSTRATE.