CONFIGURATION: PLATE, PLANE-PARALLEL
LENGTH: 7.70mm +/- 0.025mm
WIDTH: 3.30mm +/- 0.025mm
THICKNESS: 0.50mm +/- 0.05mm
CORNER BEVEL: 0.824mm +/- 0.05mm X 20deg, 4 PLACES
EDGE BEVEL: LIGHT PROTECTIVE BEVEL, ALL EDGES.
PARALLELISM: 3 ARC MINUTES MAXIMUM.
SURFACE ACCURACY: POWER: 3 FRINGES MAXIMUM
@ 633nm, 2 FACES.
IRREG: 1/2 FRINGE MAXIMUM
@ 633nm, 2 FACES.
SURFACE QUALITY: 20-10 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001).
COATING: NONE, NOT REQUIRED.