Part Details | OPTICAL INSTRUMENT LENS
6650-00-210-4387 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: MIL1801, 1049120, 6650-00-210-4387, 00-210-4387, 6650002104387, 002104387
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-210-4387 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-210-4387
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MIL1801 | 06175 | BAUSCH & LOMB INC |
| 1049120 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-210-4387
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND DOUBLE CONCAVE |
| DIAMETER | 2.046 INCHES MINIMUM AND 2.047 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.630 INCHES NOMINAL AND 0.118 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.74803 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.441 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -2.047 INCHES AND 2.047 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -2.047 INCHES AND 11.100 INCHES |
| EQUIVALENT FOCAL LENGTH | 9.541 INCHES |
| BACK FOCAL LENGTH | 8.445 INCHES |
| FRONT FOCAL LENGTH | 10.231 INCHES |
| REFRACTION INDEX | 1.5170 NOMINAL AND 1.7200 NOMINAL |
| ABBE CONSTANT | B64.500$$B29.300 |
| FSC APPLICATION DATA | OPTICAL SIGHTING AND RANGING EQUIPMENT |