CONFIGURATION: DISC, CENTER THRU-HOLE, PL/CC
OUTER DIAMETER: 38.00mm + 0.00mm /- 0.10mm
INNER DIAMETER: 2.00mm +/- 0.10mm
EDGE THICKNESS: 1.00mm +/- 0.05mm
ANNULAR RING DIAMETER: 34.00mm +/- 0.20mm
(CONCAVE FACE)
SPHERICAL RADIUS: 300.00mm +/- 1.50mm CONCAVE
SURFACE ACCURACY: NOT SPECIFIED
SURFACE QUALITY: 60-40 PER MIL-O-13830, 3 FACES.
( PLANO, CONCAVE, AND ANNULAR
RING FACES ) ALL OTHERS GROUND.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)
COATING: NONE, NOT REQUIRED.