NSN 6650-00-382-1859
Part Details | OPTICAL INSTRUMENT LENS
6650-00-382-1859 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: LD172589PC78, LD172589GP78, 6650-00-382-1859, 00-382-1859, 6650003821859, 003821859
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-382-1859 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-382-1859
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| LD172589PC78 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| LD172589GP78 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-382-1859
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 1.181 INCHES NOMINAL |
| AXIAL THICKNESS | 0.295 INCHES NOMINAL AND 0.138 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.433 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.357 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -1.970 INCHES AND 3.710 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -1.970 INCHES AND -6.181 INCHES |
| EQUIVALENT FOCAL LENGTH | 5.402 INCHES |
| BACK FOCAL LENGTH | 5.215 INCHES |
| FRONT FOCAL LENGTH | 5.304 INCHES |
| REFRACTION INDEX | 1.5170 NOMINAL AND 1.6210 NOMINAL |
| ABBE CONSTANT | B64.300$$B36.600 |
| FSC APPLICATION DATA | FIRE CONTROL,TELESCOPE,MK 77 |