Diameter: 25.40mm +.000/- 0.10mm
Thickness: 3.10mm +/- 0.10mm
Paralllelism: 5 Arc Minutes Maximum
Edge Bevels: 0.20mm / 0.30mm x 45 Degrees, Both Edges
Surface Accuracy: Power: 5 Fringes Maximum @ 633nm, Both Faces
Irregularity: 3 Fringes Maximum @ 633nm, Both Faces
Surface Quality: 60-40 per MIL-PRF-13830, Both Faces
Material Type / Quality: Sapphire, Optical Grade
Marking: “Al203” per Drawing T0026374
Coating: None, Not Required