NSN 6650-00-585-1850
Part Details | OPTICAL INSTRUMENT LENS
6650-00-585-1850 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: 10739491, 1073949-1, 10739491, 1073949-1, 10739491, 1073949-1, 10739491, 1073949-1, 1073949PC1, 10739491, 1073949-1, 6650-00-585-1850, 00-585-1850, 6650005851850, 005851850
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-585-1850 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-585-1850
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1073949-1 | 06175 | BAUSCH & LOMB INC |
| 1073949-1 | 54089 | DRS C3 & AVIATION COMPANYDBA DRS DATA & IMAGING SYSTEMS |
| 1073949-1 | 22380 | DRS PHOTRONICS, INC.DBA DRS PHOTRONICS, INC. |
| 1073949-1 | 75393 | KOPP GLASS, INC. |
| 1073949PC1 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| 1073949-1 | 05728 | TIFFEN MANUFACTURING CORPDBA TIFFEN ACQUISITION LLC |
Technical Data | NSN 6650-00-585-1850
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE A MIL SPEC SINGLE MATERIAL RESPONSE |
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 1.925 INCHES MINIMUM AND 1.929 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.276 INCHES NOMINAL AND 0.197 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.472 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.394 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 14.028 INCHES |
| BACK FOCAL LENGTH | 13.813 INCHES |
| FRONT FOCAL LENGTH | 13.939 INCHES |
| REFRACTION INDEX | 1.5171 NOMINAL AND 1.6489 NOMINAL |
| FSC APPLICATION DATA | OPTICAL SIGHTING AND RANGING EQUIPMENT |