NSN 6650-00-382-0653
Part Details | OPTICAL INSTRUMENT LENS
6650-00-382-0653 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: 176445PC24, 176445PC24, 6650-00-382-0653, 00-382-0653, 6650003820653, 003820653
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-382-0653 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-382-0653
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 176445PC24 | 4L762 | BAUSCH AND LOMB INCOPTICAL SYSTEMS DIV |
| 176445PC24 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-382-0653
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND PLANO-CONCAVE |
| DIAMETER | 21.0 MILLIMETERS NOMINAL |
| AXIAL THICKNESS | 2.6 MILLIMETERS NOMINAL AND 1.0 MILLIMETERS NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 3.6 MILLIMETERS NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 2.5 MILLIMETERS NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 20.2 MILLIMETERS AND -14.0 MILLIMETERS |
| ELEMENT RIGHT SURFACE RADIUS | 14.0 MILLIMETERS AND 0.0 MILLIMETERS |
| EQUIVALENT FOCAL LENGTH | 3.978 CENTIMETERS |
| BACK FOCAL LENGTH | 3.044 CENTIMETERS |
| FRONT FOCAL LENGTH | 6.338 CENTIMETERS |
| REFRACTION INDEX | 1.5170 NOMINAL AND 1.6463 NOMINAL |
| ABBE CONSTANT | B64.4000$$B34.0000 |