NSN 6650-00-902-9740
Part Details | OPTICAL INSTRUMENT LENS
6650-00-902-9740 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: 10513555, 6650-00-902-9740, 00-902-9740, 6650009029740, 009029740
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1960 | 00-902-9740 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-902-9740
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 10513555 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-902-9740
| 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 PLANO-CONCAVE |
| DIAMETER | 1.266 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.362 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.250 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 3.690 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 1.651 INCHES |
| EQUIVALENT FOCAL LENGTH | 6.626 INCHES |
| BACK FOCAL LENGTH | 6.385 INCHES |
| FRONT FOCAL LENGTH | 6.023 INCHES |
| REFRACTION INDEX | 1.6200 NOMINAL AND 1.6490 NOMINAL |
| ABBE CONSTANT | B60.300$$B33.800 |
| FSC APPLICATION DATA | PERISCOPE,TANK,XM48 |
