NSN 6650-00-382-1963
Part Details | OPTICAL INSTRUMENT LENS
6650-00-382-1963 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: LD172600PC28, LD172600PC28, 6650-00-382-1963, 00-382-1963, 6650003821963, 003821963
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-382-1963 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-382-1963
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| LD172600PC28 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| LD172600PC28 | 53711 | NAVAL SEA SYSTEMS COMMAND |
Technical Data | NSN 6650-00-382-1963
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 1.583 INCHES NOMINAL |
| AXIAL THICKNESS | 0.500 INCHES NOMINAL AND 0.157 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.657 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.409 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 3.114 INCHES |
| BACK FOCAL LENGTH | 2.794 INCHES |
| FRONT FOCAL LENGTH | 2.993 INCHES |
| REFRACTION INDEX | 1.5169 NOMINAL AND 1.6488 NOMINAL |
| ABBE CONSTANT | B64.400$$B33.800 |
| FSC APPLICATION DATA | FIRE CONTROL PERISCOPE MK 28,MOD O,1 |