LENGTH: 3.000″+/-.005″
WIDTH: 2.500″+/-.005″
THICKNESS: 0.040″+/-.005″
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: FUSED SILICA, ULTRA HIGH
PURITY, HERAEUS SPECTROSIL
2000
COATING: NONE, NOT REQUIRED.