Diameter 0.375″+/-.001″
Thickness 0.019″+/-.001″
Edge Bevels: 0.007″+/-.001″ x 45 Degrees, Both Edges
Parallelism: < 10 Arc Seconds
Transmitted Wavefront Error: Power: < 4 Fringes @ 633nm
Within Clear Aperture
Irregularity: < 1 Fringe @ 633nm
Within Clear Aperture
Surface Quality: D-C per MIL-F-48616, Both Faces
Clear Aperture: Central 0.355 Minimum Diameter, Both Faces
Edge Chips: 0.010″ Maximum Into Face
Material Type / Quality: Sapphire, Optical Grade
Crystallographic Orientation: c-Plane
Coating: None, Not Required