DIAMETER: 6.00mm + 0.00mm /- 0.10mm
THICKNESS: 0.85mm +/- 0.10mm
PARALLELISM: 2 ARC SECONDS MAXIMUM.
TRANSMITTED WAVEFRONT: 0.20 WAVE AT 632nm.
EDGE BEVEL: LIGHT PROTECTIVE BEVEL, 2 PLACES.
SURFACE FINISH: 10-5 PER MIL-O-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 4.5mm DIAMETER.
MATERIAL GRADE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)
COATING: NONE, NOT REQUIRED.