NSN 6650-00-809-1817
Part Details | OPTICAL INSTRUMENT LENS
6650-00-809-1817 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: 6180382, 6180382, 6180382, 6650-00-809-1817, 00-809-1817, 6650008091817, 008091817
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-809-1817 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE CONVEX
DOUBLE CONVEX
Cross Reference | NSN 6650-00-809-1817
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6180382 | 30874 | INTERNATIONAL BUSINESS MACHINES CORP |
| 6180382 | 0B6S1 | INTERNATIONAL BUSINESS MACHINES CORPPARTS ORDER CENTER DEPT E - 54 |
| 6180382 | 03640 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
Technical Data | NSN 6650-00-809-1817
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE A MIL SPEC SINGLE MATERIAL RESPONSE |
| SINGLE LENS STYLE | DOUBLE CONVEX |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX |
| DIAMETER | 1.250 INCHES NOMINAL |
| AXIAL THICKNESS | 0.500 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 1.500 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 0.850 INCHES |
| EQUIVALENT FOCAL LENGTH | 1.0273 INCHES |
| BACK FOCAL LENGTH | 0.9026 INCHES |
| FRONT FOCAL LENGTH | 0.8073 INCHES |
| REFRACTION INDEX | 1.5725 NOMINAL |
| ABBE CONSTANT | 57.400 |
| FSC APPLICATION DATA | COMPARATOR,TOPOGRAPHICAL AIRCRAFT BOMBING FIRE CONTROL |