CONFIGURATION: DISC, PLANE-WEDGED
DIAMETER: 0.565″+/-.004″
THICKNESS: 0.250″+/-.005 ” (HIGH SIDE OF WEDGE)
WEDGE ANGLE: 0.453 DEGREES +/- 0.017 DEGREES.
EDGE BEVEL: LIGHT PROTECTIVE BEVEL, 2 PLACES.
SURFACE ACCURACY: 1/4 WAVE MAXIMUM @ 0.633um,
2 FACES.
SURFACE QUALITY: 60-40 PER MIL-PRF-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 85% MINIMUM OF DIAMETER,
2 FACES.
MARKING: LINE ON OD SURFACE INDICATING LOW SIDE
OF WEDGE (INDELIBLE). SEE DRAWING.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001).
COATING: NONE, NOT REQUIRED.