NSN 6650-00-766-0733
Part Details | OPTICAL INSTRUMENT LENS
6650-00-766-0733 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: 7660733, 6650-00-766-0733, 00-766-0733, 6650007660733, 007660733
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-766-0733 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-766-0733
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 7660733 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-766-0733
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | MENISCUS DIVERGING AND MENISCUS CONVERGING |
| DIAMETER | 1.900 INCHES NOMINAL |
| AXIAL THICKNESS | 0.158 INCHES NOMINAL AND 0.472 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.630 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.562 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 3.661 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 1.705 INCHES |
| EQUIVALENT FOCAL LENGTH | 13.161 INCHES |
| BACK FOCAL LENGTH | 12.454 INCHES |
| REFRACTION INDEX | 1.5725 NOMINAL AND 1.5125 NOMINAL |
| ABBE CONSTANT | B42.500$$B60.500 |
| FSC APPLICATION DATA | PERISCOPE,INTEGRATED WITH FIRE CONTROL EQUIPMENT |