NSN 6650-00-382-1831
Part Details | OPTICAL INSTRUMENT LENS
6650-00-382-1831 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: LD172589PC43, LD172589GP43, 6650-00-382-1831, 00-382-1831, 6650003821831, 003821831
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-382-1831 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-382-1831
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| LD172589PC43 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| LD172589GP43 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-382-1831
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 1.417 INCHES NOMINAL |
| AXIAL THICKNESS | 0.236 INCHES NOMINAL AND 0.118 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.354 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.304 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -3.370 INCHES AND 6.181 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -3.370 INCHES AND -28.346 INCHES |
| EQUIVALENT FOCAL LENGTH | 9.921 INCHES |
| BACK FOCAL LENGTH | 9.726 INCHES |
| FRONT FOCAL LENGTH | 9.893 INCHES |
| REFRACTION INDEX | 1.5740 NOMINAL AND 1.6210 NOMINAL |
| ABBE CONSTANT | B57.700$$B36.600 |
| FSC APPLICATION DATA | FIRE CONTROL,TELESCOPE,MK67 |
