CONFIGURATION: DISC, PLANE-PARALLEL
DIAMETER: 5.00mm + 0.00mm /- 0.20mm
THICKNESS: 0.50mm +/- 0.02mm
PARALLELISM: 1 ARC MINUTE MAXIMUM.
EDGE BEVEL: LIGHT PROTECTIVE BEVEL, 2 PLACES.
CLEAR APERTURE: CENTRAL 4.25mm MINIMUM DIAMETER.
FLATNESS: 1/4 WAVE MAXIMUM @ 546nm, 2 FACES.
TRANSMITTED WAVEFRONT ERROR: 1/4 WAVE MAXIMUM AT
546nm.
SURFACE QUALITY: 20-10 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001) +/- 2deg.
COATING: NONE, UNCOATED SUBSTRATE.