MAJOR DIAMETER: 0.531″+/-.002″
MINOR DIAMETER: 0.358″ REF.ONLY
OD TAPER ANGLE: 36.243 DEGREES X 0.118″ (SEE DWG)
OD WALL THICKNESS: 0.039″+/-.005″
OVERALL THICKNESS: 0.157″+/-.005″
PARALLELISM: 3 ARC MINUTES MAXIMUM.
TRANSMITTED WAVEFRONT ERROR: 1/4 WAVE MAXIMUM OVER
(@ 633nm) ENTIRE CLEAR APERTURE
EDGE BEVELS: LIGHT PROTECTIVE BEVEL, MAJOR
DIAMETER FACE EDGE ONLY.
SURFACE QUALITY: 40-20 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001).
COATING: NONE, UNCOATED SUBSTRATE.