| ELEMENT LEFT SURFACE RADIUS | -2.047 INCHES AND 2.047 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -2.047 INCHES AND 11.100 INCHES |
| ABBE CONSTANT | 64.500 AND 29.300 |
| AXIAL THICKNESS | 0.630 INCHES NOMINAL AND 0.118 INCHES NOMINAL |
| BACK FOCAL LENGTH | 8.445 INCHES |
| COMPOUND LENS EDGE THICKNESS | 0.441 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.74803 INCHES NOMINAL |
| COMPOUND LENS STYLE | DOUBLET |
| DIAMETER | 2.046 INCHES MINIMUM AND 2.047 INCHES MAXIMUM |
| EQUIVALENT FOCAL LENGTH | 9.541 INCHES |
| FRONT FOCAL LENGTH | 10.231 INCHES |
| FSC APPLICATION DATA | OPTICAL SIGHTING AND RANGING EQUIPMENT |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND DOUBLE CONCAVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | GLASS OPTICAL |
| REFRACTION INDEX | 1.5170 NOMINAL AND 1.7200 NOMINAL |