NSN 6650-00-531-6359
Part Details | OPTICAL INSTRUMENT LENS
6650-00-531-6359 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: 5316359, 5316359, 6650-00-531-6359, 00-531-6359, 6650005316359, 005316359
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-531-6359 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-531-6359
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 5316359 | 34870 | FJW OPTICAL SYSTEMS, INC. |
| 5316359 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-531-6359
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 1.374 INCHES NOMINAL |
| AXIAL THICKNESS | 0.506 INCHES NOMINAL AND 0.070 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.576 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.338 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -1.529 INCHES AND 1.269 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -1.529 INCHES AND 6.597 INCHES |
| EQUIVALENT FOCAL LENGTH | 2.324 INCHES |
| BACK FOCAL LENGTH | 1.974 INCHES |
| REFRACTION INDEX | 1.5170 NOMINAL AND 0.6170 NOMINAL |
| ABBE CONSTANT | B64.500$$B66.600 |
| FSC APPLICATION DATA | TELESCOPE,INTEGRATED WITH FIRE CONTROL EQUIPMENT |