NSN 6650-00-903-6670
Part Details | OPTICAL INSTRUMENT LENS
6650-00-903-6670 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: 8216005, 6650-00-903-6670, 00-903-6670, 6650009036670, 009036670
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1960 | 00-903-6670 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-903-6670
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8216005 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-903-6670
| 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 CONCAVE AND DOUBLE CONVEX |
| DIAMETER | 2.370 INCHES NOMINAL |
| AXIAL THICKNESS | 0.122 INCHES NOMINAL AND 0.750 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.872 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.687 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -4.701 INCHES AND 2.370 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -2.370 INCHES AND 2.370 INCHES |
| EQUIVALENT FOCAL LENGTH | 10.812 INCHES |
| BACK FOCAL LENGTH | 10.198 INCHES |
| FRONT FOCAL LENGTH | 9.326 INCHES |
| REFRACTION INDEX | 1.7200 NOMINAL AND 1.6200 NOMINAL |
| ABBE CONSTANT | B29.300$$B60.300 |
| FSC APPLICATION DATA | PERISCOPE,XM44 |
