Part Details | OPTICAL INSTRUMENT LENS
6650-00-507-9256 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: 6650005079256, 8200009, 6650-00-507-9256, 00-507-9256, 6650005079256, 005079256
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-507-9256 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-507-9256
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6650005079256 | A00AM | E.C.A ETABLISSEMENT CENTRALDESAPPROVISIONNEMENTS DES FORCES |
| 8200009 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-507-9256
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | PLANO-CONCAVE AND MENISCUS DIVERGING |
| DIAMETER | 1.500 INCHES NOMINAL |
| AXIAL THICKNESS | 0.202 INCHES NOMINAL AND 0.150 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.352 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.309 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 42.390 MILLIMETERS |
| ELEMENT RIGHT SURFACE RADIUS | 3.117 INCHES |
| EQUIVALENT FOCAL LENGTH | 14.937 INCHES |
| BACK FOCAL LENGTH | 14.932 INCHES |
| REFRACTION INDEX | 1.5230 NOMINAL AND 1.6050 NOMINAL |
| ABBE CONSTANT | B58.600$$B38.000 |
| FSC APPLICATION DATA | FINDER,RANGE,T42E1,INTEGRATED WITH FIRE CONTROL EQUIPMENT |