OUTER DIAMETER: 15.00mm + 0.03mm /- 0.08mm
INNER DIAMETER: 1.40mm + 0.00mm /- 0.08mm
THICKNESS: 2.00mm +/- 0.08mm
PARALLELISM: 3 ARC MINUTES MAXIMUM.
EDGE BEVEL: 0.20mm NOMINAL X 45deg, 2 PLACES
FLATNESS: 1 WAVE MAXIMUM WITHIN CLEAR APERTURE,
2 FACES.
SURFACE QUALITY: 80-50 PER MIL-O-13830, 2 FACES.
CLEAR APERTURE: ANNULAR RING FORMED BETWEEN A
1.80mm INNER AND 13.50mm OUTER
DIAMETERS.
MATERIAL TYPE/QUALITY: SINGLE CRYSTAL QUARTZ,
OPTICAL GRADE.
COATING: NONE, NOT REQUIRED.