NSN 6650-00-829-7364
Part Details | OPTICAL INSTRUMENT LENS
6650-00-829-7364 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: 10542224, 6650-00-829-7364, 00-829-7364, 6650008297364, 008297364
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | SEP 01, 1967 | 00-829-7364 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE CONVEX
DOUBLE CONVEX
Cross Reference | NSN 6650-00-829-7364
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 10542224 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-829-7364
| Characteristic | Specifications |
|---|---|
| SINGLE LENS STYLE | DOUBLE CONVEX |
| DIAMETER | 6.865 INCHES MINIMUM AND 6.870 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
| ELEMENT LEFT SURFACE RADIUS | 20.230 MILLIMETERS |
| ELEMENT RIGHT SURFACE RADIUS | 54.650 MILLIMETERS |
| EQUIVALENT FOCAL LENGTH | 28.643 INCHES |
| BACK FOCAL LENGTH | 28.329 INCHES |
| REFRACTION INDEX | 1.5170 NOMINAL |
| ABBE CONSTANT | 64.500 |
| SPECIAL FEATURES | BOTH SURFACES COATED WITH MAGNESIUM FLUORIDE |
| FSC APPLICATION DATA | PERISCOPE XM44E1 |