MSW200/040 Sapphire Window

From melleroptics.com:

DIAMETER: 2.000+/-.004
THICKNESS: 0.040+/-.002
PARALLELISM: 3 ARC MINUTES MAXIMUM.
EDGE BEVEL: 0.005/0.010 X 45deg, 2 PLACES.
FLATNESS: 10 WAVES/INCH MAXIMUM, 2 FACES.
SURFACE QUALITY: 80-50 PER MIL-PRF-13830, 2 FACES.
MATERIAL QUALITY: SAPPHIRE, OPTICAL GRADE
CRYSTALLOGRAPHIC ORIENTATION: RANDOM

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