LENGTH X WIDTH: 0.750″ X 0.6875″ +/-.002″
THICKNESS: 0.020″+/-.002″
PARALLELISM: NOT SPECIFIED.
FLATNESS: NOT SPECIFIED.
SURFACE FINISH: 80-50 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE
CRYSTALLOGRAPHIC ORIENTATION: R-PLANE.
COATING: NONE, NOT REQUIRED.