NSN 6650-00-300-6596
Part Details | OPTICAL INSTRUMENT LENS
6650-00-300-6596 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: 7633297, 7633297, 7633297, 6650-00-300-6596, 00-300-6596, 6650003006596, 003006596
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-300-6596 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
PLANO-CONCAVE
DOUBLET
PLANO-CONCAVE
Cross Reference | NSN 6650-00-300-6596
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 7633297 | 34870 | FJW OPTICAL SYSTEMS, INC. |
| 7633297 | 11934 | SEILER INSTRUMENT AND MANUFACTURINGCOMPANY, INCORPORATED |
| 7633297 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-300-6596
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | PLANO-CONCAVE |
| DIAMETER | 1.340 INCHES NOMINAL |
| AXIAL THICKNESS | 0.425 INCHES NOMINAL AND 0.140 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.565 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.404 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -2.148 INCHES AND 1.478 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -2.148 INCHES |
| EQUIVALENT FOCAL LENGTH | 2.952 INCHES |
| BACK FOCAL LENGTH | 2.560 INCHES |
| REFRACTION INDEX | 1.6890 NOMINAL |
| ABBE CONSTANT | B57.400$$B30.900 |
| FSC APPLICATION DATA | TELESCOPE,INTEGRATED WITH FIRE CONTROL EQUIPMENT |