DIAMETER: 0.1793″+/-.0002″
THICKNESS: 0.0375″+/-.0055″
PARALLELISM: 3 ARC MINUTES MAXIMUM.
FLATNESS: 1/4 WAVE MAXIMUM OVER CENTRAL 0.150″
DIAMETER, 2 FACES.
EDGE BEVEL: 0.0005″/0.0020″ RADIUS, 2 PLACES.
SURFACE FINISH: 80-50 PER MIL-O-13830, 2 FACES.
MATERIAL QUALITY: OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: C-AXIS PERPENDICULAR
TO FACES, (0001) NOMINAL.
COATING: MgF2 ANTIREFLECTION COATING ON 1 SURFACE
ONLY FOR MAXIMUM TRANSMISSION AT 600nm.
MARKING: UNCOATED SURFACE DOTTED WITH MARKER PEN.