DIAMETER: 0.620″+/-.001
THICKNESS: 0.062″+/-.005
PARALLELISM: 0.001″ MAXIMUM TIR
FLATNESS: 0.0002″ PER INCH MAXIMUM T.I.R.
EDGE BEVEL: 0.015″/0.020″ X 45deg, 1 PLACE
0.010″ MAXIMUM X 45deg, 1 PLACE
SURFACE FINISH: 10-5 PER MIL-O-13830, 2 FACES.
EDGE AND BEVEL FINISH: FINE GROUND, 320 MESH
MATERIAL TYPE/QUALITY: SAPPHIRE, CSI VUV GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)