NSN 6650-00-399-8980
Part Details | OPTICAL INSTRUMENT LENS
6650-00-399-8980 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: 238574PC4, 238574PC4, 6650-00-399-8980, 00-399-8980, 6650003998980, 003998980
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-399-8980 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE CONCAVE
DOUBLE CONCAVE
Cross Reference | NSN 6650-00-399-8980
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 238574PC4 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| 238574PC4 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGEDORIGINAL DESIGN ACTIVITY NOT |
Technical Data | NSN 6650-00-399-8980
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS |
| SINGLE LENS STYLE | DOUBLE CONCAVE |
| DIAMETER | 84.6 MILLIMETERS NOMINAL |
| AXIAL THICKNESS | 4.7 MILLIMETERS NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 120.0 MILLIMETERS |
| ELEMENT RIGHT SURFACE RADIUS | 280.0 MILLIMETERS |
| REFRACTION INDEX | 1.6206 NOMINAL |
| ABBE CONSTANT | 84.600 |