NSN 6650-00-078-4092
Part Details | OPTICAL INSTRUMENT LENS
6650-00-078-4092 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: 8620992, 6650-00-078-4092, 00-078-4092, 6650000784092, 000784092
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-078-4092 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-078-4092
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8620992 | 19204 | ARMY, UNITED STATES DEPARTMENT OFTHE |
Technical Data | NSN 6650-00-078-4092
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| LENGTH | 1.300 INCHES NOMINAL |
| DIAMETER | 1.297 INCHES MINIMUM AND 1.300 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.210 INCHES NOMINAL AND 0.300 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.490 INCHES MINIMUM AND 0.530 INCHES MAXIMUM |
| COMPOUND LENS EDGE THICKNESS | 0.463 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 8.050 INCHES AND 2.799 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 2.799 INCHES AND -10.130 INCHES |
| EQUIVALENT FOCAL LENGTH | 10.630 INCHES |
| FRONT FOCAL LENGTH | 10.497 INCHES |