NSN 6650-00-450-1699
Part Details | OPTICAL INSTRUMENT LENS
6650-00-450-1699 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: 24857813, 248578-13, 6650-00-450-1699, 00-450-1699, 6650004501699, 004501699
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | DEC 10, 1969 | 00-450-1699 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE CONVEX
DOUBLE CONVEX
Cross Reference | NSN 6650-00-450-1699
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 248578-13 | 89944 | KOLLSMAN, INC. |
Technical Data | NSN 6650-00-450-1699
| Characteristic | Specifications |
|---|---|
| SINGLE LENS STYLE | DOUBLE CONVEX |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX |
| DIAMETER | 1.772 INCHES NOMINAL |
| AXIAL THICKNESS | 0.409 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 6.109 INCHES |
| BACK FOCAL LENGTH | 5.330 INCHES |
| FRONT FOCAL LENGTH | 4.453 INCHES |
| REFRACTION INDEX | 1.5730 NOMINAL |
| ABBE CONSTANT | 57.500 |