Part Details | OPTICAL INSTRUMENT LENS
6650-00-251-7512 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: 11741684, 11741684, 6650-00-251-7512, 00-251-7512, 6650002517512, 002517512
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JUN 13, 1973 | 00-251-7512 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
PLANO-CONVEX
PLANO-CONVEX
Cross Reference | NSN 6650-00-251-7512
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 11741684 | 03829 | GENERAL SCIENTIFIC CORPORATIONDIV GENERAL SCIENTIFIC CORP |
| 11741684 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-251-7512
| Characteristic | Specifications |
|---|---|
| SINGLE LENS STYLE | PLANO-CONVEX |
| DIAMETER | 0.557 INCHES MINIMUM AND 0.560 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.108 INCHES MINIMUM AND 0.128 INCHES MAXIMUM |
| ELEMENT LEFT SURFACE RADIUS | 1.661 INCHES |
| EQUIVALENT FOCAL LENGTH | 3.176 INCHES |
| BACK FOCAL LENGTH | 3.098 INCHES |
| REFRACTION INDEX | 1.5230 NOMINAL |
| ABBE CONSTANT | 58.600 |
| SPECIAL FEATURES | EDGES BEVELED 0.005 TO 0.010 IN. BY 45 DEG. RIM AND BEVELED EDGES GROUND. |
| FSC APPLICATION DATA | TRAINER,TANK GUNNERY |