Part Details | OPTICAL INSTRUMENT LENS
6650-00-073-8841 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: 8626210, 6650-00-073-8841, 00-073-8841, 6650000738841, 000738841
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-073-8841 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-073-8841
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8626210 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-073-8841
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 1.237 INCHES MINIMUM AND 1.243 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.349 INCHES MINIMUM AND 0.369 INCHES MAXIMUM AND 0.092 INCHES MINIMUM AND 0.112 INCHES MAXIMUM |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.441 INCHES MINIMUM AND 0.481 INCHES MAXIMUM |
| ELEMENT LEFT SURFACE RADIUS | 3.127 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 2.410 INCHES |
| EQUIVALENT FOCAL LENGTH | 5.569 INCHES |
| BACK FOCAL LENGTH | 5.312 INCHES |
| REFRACTION INDEX | 1.5170 NOMINAL AND 1.6490 NOMINAL |
| ABBE CONSTANT | B64.500$$B33.800 |
| FSC APPLICATION DATA | TELESCOPE PANORAMIC M113 |