DIAMETER: 1.250″+.000″/-.005″
THICKNESS: 0.1850″+/-.0025″
PARALLELISM: 3 ARC MINUTES MAXIMUM
EDGE BEVEL: LIGHT PROTECTIVE BEVEL, 2 PLACES.
SURFACE ACCURACY: 5 WAVES MAXIMUM @ 633nm, 2 FACES
CLEAR APERTURE: CENTRAL 1.062″ MINIMUM DIAMETER
SURFACE FINISH: 20-10 PER MIL-PRF-13830, 2 FACES
MATERIAL TYPE/QUALITY: FUSED SILICA, STANDARD
OPTICAL QUALITY.
COATING: NONE, NOT REQUIRED.