LENGTH: 29.50mm + 0.00mm /- 0.15mm
WIDTH: 27.40mm + 0.00mm /- 0.15mm
THICKNESS: 3.00mm +/- 0.05mm
PARALLELISM: 3 ARC MINUTES MAXIMUM
SURFACE ACCURACY: 10 WAVES/INCH MAXIMUM, 2 FACES.
SURFACE QUALITY: 80-50 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: CALCIUM FLUORIDE, OPTICAL
QUALITY.
COATING: NONE, NOT REQUIRED.