NSN 6650-00-964-9278
Part Details | OPTICAL INSTRUMENT LENS
6650-00-964-9278 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: 8626475, 8626475, 6650-00-964-9278, 00-964-9278, 6650009649278, 009649278
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-964-9278 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-964-9278
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8626475 | 03829 | GENERAL SCIENTIFIC CORPORATIONDIV GENERAL SCIENTIFIC CORP |
| 8626475 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-964-9278
| 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 | DOUBLE CONVEX AND DOUBLE CONCAVE |
| DIAMETER | 1.610 INCHES NOMINAL |
| AXIAL THICKNESS | 0.575 INCHES NOMINAL AND 0.097 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.672 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.313 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -1.794 INCHES AND 1.575 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -1.794 INCHES AND 5.708 INCHES |
| EQUIVALENT FOCAL LENGTH | 4.174 INCHES |
| BACK FOCAL LENGTH | 3.509 INCHES |
| FRONT FOCAL LENGTH | 2.837 INCHES |
| REFRACTION INDEX | 1.6200 NOMINAL AND 1.7200 NOMINAL |
| ABBE CONSTANT | B60.300$$B29.300 |
| FSC APPLICATION DATA | TELESCOPE INTEGRATED WITH FIRE CONTROL EQUIP |
