NSN 6650-00-503-3906
Part Details | OPTICAL INSTRUMENT LENS
6650-00-503-3906 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: 5033906, 6650-00-503-3906, 00-503-3906, 6650005033906, 005033906
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-503-3906 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-503-3906
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 5033906 | 18876 | U S ARMY AVIATION AND MISSILECOMMAND |
Technical Data | NSN 6650-00-503-3906
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND PLANO-CONCAVE |
| DIAMETER | 1.220 INCHES NOMINAL |
| AXIAL THICKNESS | 0.252 INCHES NOMINAL AND 0.108 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.360 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.267 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | A4.790$A4.800 |
| BACK FOCAL LENGTH | A4.532$A4.728 |
| REFRACTION INDEX | 1.5170 MINIMUM AND 1.6490 MAXIMUM |
| ABBE CONSTANT | B33.700$$B64.500 |
| FSC APPLICATION DATA | TELESCOPE,INTEGRATED WITH FIRE CONTROL EQUIPMENT |