NSN 6650-00-382-1951
Part Details | OPTICAL INSTRUMENT LENS
6650-00-382-1951 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: LD172600PC16, LD172600PC16, 6650-00-382-1951, 00-382-1951, 6650003821951, 003821951
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-382-1951 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-382-1951
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| LD172600PC16 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| LD172600PC16 | 53711 | NAVAL SEA SYSTEMS COMMAND |
Technical Data | NSN 6650-00-382-1951
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 1.732 INCHES NOMINAL |
| AXIAL THICKNESS | 0.157 INCHES NOMINAL AND 0.315 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.472 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.419 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 13.731 INCHES |
| BACK FOCAL LENGTH | 13.474 INCHES |
| FRONT FOCAL LENGTH | 13.691 INCHES |
| REFRACTION INDEX | 1.6208 NOMINAL AND 1.5744 NOMINAL |
| ABBE CONSTANT | B36.200$$B57.700 |
| FSC APPLICATION DATA | FIRE CONTROL,PERESCOPE MK 23 |