NSN 6650-00-450-1749
Part Details | OPTICAL INSTRUMENT LENS
6650-00-450-1749 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: 24857815, 248578-15, 6650-00-450-1749, 00-450-1749, 6650004501749, 004501749
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | DEC 10, 1969 | 00-450-1749 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE CONVEX
DOUBLE CONVEX
Cross Reference | NSN 6650-00-450-1749
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 248578-15 | 89944 | KOLLSMAN, INC. |
Technical Data | NSN 6650-00-450-1749
| Characteristic | Specifications |
|---|---|
| SINGLE LENS STYLE | DOUBLE CONVEX |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX |
| DIAMETER | 1.732 INCHES NOMINAL |
| AXIAL THICKNESS | 0.437 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 3.304 INCHES |
| BACK FOCAL LENGTH | 3.074 INCHES |
| FRONT FOCAL LENGTH | 3.185 INCHES |
| REFRACTION INDEX | 1.6130 NOMINAL |
| ABBE CONSTANT | 5058.600 |