DIAMETER: 12.50mm +/- 0.05mm
THICKNESS: 3.00mm +/- 0.05mm
PARALLELISM: 1 ARC MINUTE MAXIMUM.
FLATNESS: 2 WAVES MAXIMUM, 2 FACES.
SURFACE FINISH: 40-20 PER MIL-O-13830, 2 FACES.
MATERIAL TYPE/QUALITY: BK-7 GLASS, GRADE A.
COATING: ANTIREFLECTIVE COATING WITH MAGNESIUM
FLUORIDE FOR MAXIMUM TRANSMISSION AT
1.064 MICRONS, APPLIED TO 1 FACE ONLY.