NSN 6650-00-768-8729
Part Details | OPTICAL INSTRUMENT LENS
6650-00-768-8729 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: 7688729, 6650-00-768-8729, 00-768-8729, 6650007688729, 007688729
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-768-8729 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
PLANO-CONVEX
PLANO-CONVEX
Cross Reference | NSN 6650-00-768-8729
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 7688729 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-768-8729
| Characteristic | Specifications |
|---|---|
| SINGLE LENS STYLE | PLANO-CONVEX |
| DIAMETER | 1.391 INCHES MINIMUM AND 1.397 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.206 INCHES MINIMUM AND 0.226 INCHES MAXIMUM |
| ELEMENT LEFT SURFACE RADIUS | 2.067 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 2.067 INCHES |
| EQUIVALENT FOCAL LENGTH | 4.045 INCHES |
| BACK FOCAL LENGTH | 3.902 INCHES |
| REFRACTION INDEX | 1.5110 NOMINAL |
| ABBE CONSTANT | 63.500 |
| SPECIAL FEATURES | CHAMFER EDGES 0.010 IN. MIN,0.020 IN. MAX. BY 45 DEG. FRONT AND BACK SURFACES COATED WITH MAGNESIUM FLUORIDE. |
| FSC APPLICATION DATA | PERISCOPE,TANK |