MAJOR DIAMETER: 0.348″+/-.002″
MINOR DIAMETER: 0.248″+.000″/-.005″
OVERALL THICKNESS: 0.097″ REF.
MAJOR DIAMETER THICKNESS: 0.062″+/-.002″
MINOR DIAMETER HEIGHT: 0.035″+/-.005″
CONCENTRICITY OF DIAMETERS: NOT SPECIFIED.
PARALLELISM: 3 ARC MINUTES MAXIMUM
EDGE BEVEL: 0.005″ NOMINAL X 45deg, 3 PLACES.
FLATNESS: 1 WAVE/INCH MAXIMUM, 2 FACES.
SURFACE QUALITY: 60-40 PER MIL-O-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 90% MINIMUM DIAMETER FACE
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL WHITE
GRADE (CSI).
CRYSTALLOGRAPHIC ORIENTATION: RANDOM.
COATING: NONE, NOT REQUIRED.