CONFIGURATION: DISC, PLANE-PARALLEL, W/ THRU-HOLES
DIAMETER: 15.875mm +/- 0.12mm
THICKNESS: 2.00mm +/- 0.12mm
PARALLELISM: 3 ARC MINUTES MAXIMUM.
THRU-HOLE SIZE: 1.00mm +/- 0.12MM, 4 PLACES.
THRU-HOLE LOCATIONS: 4 HOLES ON A 10.0mm B.C.
SPACED 6mm HORIZONTALLY
AND 8mm VERTICALLY.
EDGE BEVEL: PROTECTIVE BREAK
FLATNESS: NOT SPECIFIED.
SURFACE QUALITY: FINE GROUND ALL SURFACES
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: RANDOM.