CONFIGURATION: DISC, TAPERED OD, PLANE-PARALLEL
MAJOR DIAMETER: 0.280″+/-.002″ (PRIOR TO BEVEL)
MINOR DIAMETER: 0.171″ REF.
THICKNESS: 0.150″+/-.005″
OD TAGER ANGLE: 20 DEGREES +/- 1/2 DEGREE
PARALLELISM: 1 ARC MINUTE MAXIMUM
FLATNESS: 1/4 WAVE MAXIMUM, 2 FACES.
SURFACE QUALITY: 60-40 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)
COATING: NONE, NOT REQUIRED.