NSN 6650-00-546-9641
Part Details | OPTICAL INSTRUMENT LENS
6650-00-546-9641 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: 6650005469641, 8200149, 6650-00-546-9641, 00-546-9641, 6650005469641, 005469641
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-546-9641 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-546-9641
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6650005469641 | A00AM | E.C.A ETABLISSEMENT CENTRALDESAPPROVISIONNEMENTS DES FORCES |
| 8200149 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-546-9641
| 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 | MENISCUS DIVERGING AND DOUBLE CONVEX |
| DIAMETER | 1.400 INCHES NOMINAL |
| AXIAL THICKNESS | 0.142 INCHES NOMINAL AND 0.236 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.378 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.333 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 6.164 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 2.572 INCHES |
| EQUIVALENT FOCAL LENGTH | 13.189 INCHES |
| BACK FOCAL LENGTH | 13.192 INCHES |
| FRONT FOCAL LENGTH | 12.814 INCHES |
| REFRACTION INDEX | 1.5230 NOMINAL |
| ABBE CONSTANT | 1.605 |
| FSC APPLICATION DATA | RANGE FINDER,INTEGRATED WITH FIRE CONTROL EQUIP |