NSN 6650-00-210-4399
Part Details | OPTICAL INSTRUMENT LENS
6650-00-210-4399 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: MIL1803, 1049122, 1049122, 6650-00-210-4399, 00-210-4399, 6650002104399, 002104399
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-210-4399 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-210-4399
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MIL1803 | 06175 | BAUSCH & LOMB INC |
| 1049122 | 14001 | GRAYCO OPTICAL CORP |
| 1049122 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-210-4399
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND DOUBLE CONCAVE |
| DIAMETER | 1.750 INCHES MINIMUM AND 1.752 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.370 INCHES NOMINAL AND 0.150 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.520 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.296 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -6.169 INCHES AND 1.700 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -6.169 INCHES AND 16.598 INCHES |
| EQUIVALENT FOCAL LENGTH | 3.133 INCHES |
| BACK FOCAL LENGTH | 3.176 INCHES |
| FRONT FOCAL LENGTH | 2.773 INCHES |
| REFRACTION INDEX | 1.6110 NOMINAL AND 1.6490 NOMINAL |
| ABBE CONSTANT | B58.800$$B33.800 |
| FSC APPLICATION DATA | OPTICAL SIGHTING AND RANGING EQUIPMENT |