NSN 6650-00-763-2697
Part Details | OPTICAL INSTRUMENT LENS
6650-00-763-2697 An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see WINDOW, OPTICAL INSTRUMENT. Excludes RETICLE, OPTICAL INSTRUMENT.
Alternate Parts: 7632697, 6650-00-763-2697, 00-763-2697, 6650007632697, 007632697
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-763-2697 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-763-2697
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 7632697 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-763-2697
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | MENISCUS DIVERGING AND DOUBLE CONVEX |
| DIAMETER | 1.700 INCHES NOMINAL |
| AXIAL THICKNESS | 0.160 INCHES NOMINAL AND 0.230 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.390 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.344 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 7.237 INCHES AND 3.188 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 3.188 INCHES AND -31.336 INCHES |
| EQUIVALENT FOCAL LENGTH | 13.807 INCHES |
| BACK FOCAL LENGTH | 14.180 INCHES |
| FRONT FOCAL LENGTH | 13.790 INCHES |
| REFRACTION INDEX | 1.6170 NOMINAL AND 1.5230 NOMINAL |
| ABBE CONSTANT | B36.600$$B58.600 |
| FSC APPLICATION DATA | RANGE FINDER,INTEGRATED WITH FIRE CONTROL EQUIP |