NSN 6650-00-382-1889
Part Details | OPTICAL INSTRUMENT LENS
6650-00-382-1889 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: 511502, LD172589GP117, 6650-00-382-1889, 00-382-1889, 6650003821889, 003821889
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-382-1889 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-382-1889
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 511502 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| LD172589GP117 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-382-1889
| 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 DOUBLE CONCAVE |
| DIAMETER | 0.847 INCHES NOMINAL |
| AXIAL THICKNESS | 0.079 INCHES NOMINAL AND 0.193 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.272 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.221 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -1.248 INCHES AND 3.937 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -1.248 INCHES AND -1.248 INCHES |
| EQUIVALENT FOCAL LENGTH | 7.205 INCHES |
| BACK FOCAL LENGTH | 5.776 INCHES |
| FRONT FOCAL LENGTH | 5.217 INCHES |
| REFRACTION INDEX | 1.7200 NOMINAL AND 1.5740 NOMINAL |
| ABBE CONSTANT | B29.300$$B57.700 |
| FSC APPLICATION DATA | FIRE CONTROL,TELESCOPE,MK 104 MOD 0 |