CONFIGURATION: DISC, PLANE-PARALLEL
DIAMETER: 50.00mm + 0.00mm /- 0.10mm
THICKNESS: 1.475mm +/- 0.025mm
PARALLELISM: 10 ARC SECONDS MAXIMUM.
EDGE BEVELS: 0.25mm NOMINAL X 45deg, 2 PLACES.
TRANSMITTED WAVEFRONT: 1/5 WAVE MAXIMUM @ 633nm
SURFACE QUALITY: 40-20 PER MIL-PRF-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 40.00mm DIAMETER FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)
COATING: NONE, NOT REQUIRED.