LENGTH: 0.625 +/-.002″
WIDTH: 0.375 +/-.002″
THICKNESS: 0.020 +/-.001″
RADIUS, ONE END ONLY: 0.625″
SLOT WIDTH, RADIUS END: 0.010/0.020″
SLOT DEPTH, RADIUS END: 0.007/0.009″
SLOT LOCATED ON CENTER LINE OF LENGTH OF PLATE,
FULL RADIUS ACCEPTABLE AT BOTTOM OF SLOT.
SURFACE FINISH: ALL SURFACES FINE GROUND.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE
CRYSTALLOGRAPHIC ORIENTATION: RANDOM.