NSN 6650-00-155-2880
Part Details | OPTICAL INSTRUMENT LENS
6650-00-155-2880 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: G11060PC3, 279422PC3, 6650-00-155-2880, 00-155-2880, 6650001552880, 001552880
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-155-2880 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-155-2880
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| G11060PC3 | 74067 | KEUFFEL AND ESSER CO |
| 279422PC3 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-155-2880
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 28.0 MILLIMETERS NOMINAL |
| AXIAL THICKNESS | 5.0 MILLIMETERS NOMINAL AND 3.0 MILLIMETERS NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 8.0 MILLIMETERS NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 99.2 MILLIMETERS AND -56.9 MILLIMETERS |
| ELEMENT RIGHT SURFACE RADIUS | 56.9 MILLIMETERS AND 168.1 MILLIMETERS |
| EQUIVALENT FOCAL LENGTH | 14.057 CENTIMETERS |
| BACK FOCAL LENGTH | 13.705 CENTIMETERS |
| FRONT FOCAL LENGTH | 13.891 CENTIMETERS |
| REFRACTION INDEX | 1.5110 NOMINAL AND 1.6490 NOMINAL |
| ABBE CONSTANT | B63.500$$B33.800 |
| END ITEM IDENTIFICATION | RANGEFINDER MK51 |