| ELEMENT RIGHT SURFACE RADIUS | 3.188 INCHES AND -31.336 INCHES |
| ELEMENT LEFT SURFACE RADIUS | 7.237 INCHES AND 3.188 INCHES |
| ABBE CONSTANT | 36.600 AND 58.600 |
| AXIAL THICKNESS | 0.160 INCHES NOMINAL AND 0.230 INCHES NOMINAL |
| BACK FOCAL LENGTH | 14.180 INCHES |
| COMPOUND LENS EDGE THICKNESS | 0.344 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.390 INCHES NOMINAL |
| COMPOUND LENS STYLE | DOUBLET |
| DIAMETER | 1.700 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 13.807 INCHES |
| FRONT FOCAL LENGTH | 13.790 INCHES |
| FSC APPLICATION DATA | RANGE FINDER,INTEGRATED WITH FIRE CONTROL EQUIP |
| INDIVIDUAL LENS STYLE | MENISCUS DIVERGING AND DOUBLE CONVEX |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | GLASS OPTICAL |
| REFRACTION INDEX | 1.6170 NOMINAL AND 1.5230 NOMINAL |