DIAMETER: 0.372″+.000/-.002″
THICKNESS: 0.062″+/-.002″
PARALLELISM: 3 ARC MINUTES MAXIMUM.
FLATNESS: POWER: NOT SPECIFIED.
IRREG: NOT SPECIFIED.
CLEAR APERTURE: CENTRAL 0.350″ MINIMUM DIAMETER,
2 FACES.
EDGE BEVEL: 0.005″+/-.002″ X 45deg, 2 PLACES.
SURFACE QUALITY: 60-40 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001).
COATING: NONE, NOT REQUIRED.