DIAMETER: 0.472″+.000″/-.002″
THICKNESS: 0.0394″+/-.0020″
PARALLELISM: < 30 ARC SECONDS (BEST EFFORT)
EDGE BEVEL: LIGHT PROTECTIVE EDGE ROLL, 2 PLACES.
SURFACE ACCURACY: < 1/4 WAVE, 2 FACES(BEST EFFORT)
SURFACE FINISH: 10-5 PER MIL-PRF-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 0.400″ MINIMUM DIAMETER.
MATERIAL TYPE/QUALITY: CRYSTAL QUARTZ, OPTICAL
QUALITY.
CRYSTALLOGRAPHIC ORIENTATION: Z-CUT
COATING: NONE, NOT REQUIRED.