DIAMETER: 0.750″+/-.001″
THICKNESS: 0.135″+/-.001″
PARALLELISM: 3 ARC MINUTES MAXIMUM.
EDGE BEVEL: 0.013″/0.017″ X 45deg, 2 PLACES.
SURFACE FINISH: ALL SURFACES FINE GROUND.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)