DIAMETER: 30.00mm + 0.00mm /- 0.10mm
THICKNESS: 0.750mm +/- 0.05mm
EDGE BEVELS: LIGHT PROTECTIVE BEVEL, 2 PLACES.
PARALLELISM: 3 ARC MINUTES MAXIMUM.
FLATNESS: 10 WAVES MAXIMUM AT 633nm, 2 FACES.
SURFACE QUALITY: 80-50 PER MIL-PRF-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 25.50mm DIAMETER FACES.
MATERIAL TYPE/QUALITY: FUSED SILICA, STANDARD
OPTICAL GRADE.
COATING: NONE, NOT REQUIRED.