NSN 6650-00-382-1952
Part Details | OPTICAL INSTRUMENT LENS
6650-00-382-1952 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: LD172600PC17, LD172600PC17, 6650-00-382-1952, 00-382-1952, 6650003821952, 003821952
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-382-1952 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-382-1952
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| LD172600PC17 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| LD172600PC17 | 53711 | NAVAL SEA SYSTEMS COMMAND |
Technical Data | NSN 6650-00-382-1952
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 1.299 INCHES NOMINAL |
| AXIAL THICKNESS | 0.106 INCHES NOMINAL AND 0.224 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.331 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.261 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 5.963 INCHES |
| BACK FOCAL LENGTH | 5.770 INCHES |
| FRONT FOCAL LENGTH | 0.947 INCHES |
| REFRACTION INDEX | 1.6208 NOMINAL AND 1.5744 NOMINAL |
| ABBE CONSTANT | B36.200$$B57.700 |
| FSC APPLICATION DATA | FIRE CONTROL,PERISCOPE MK 23 |
