DIAMETER: 1.048″+/-.005″
THICKNESS: 0.440″+/-.005″
PARALLELISM: 3 ARC MINUTES MAXIMUM.
SURFACE FINISH: 80-50 PER MIL-O-13830, 2 FACES.
FLATNESS: 10 WAVES/INCH MAXIMUM, 2 FACES.
MATERIAL QUALITY: OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: RANDOM.
METALLIZATION: METALLIZE THE OUTSIDE DIAMETER
ONLY. METALLIZATION SUITABLE FOR
SOLDERING AT 380dg C WITHOUT LOSS OF
ADHESION TO THE SAPPHIRE WINDOW.