NSN 6650-00-585-1851
Part Details | OPTICAL INSTRUMENT LENS
6650-00-585-1851 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: 1073971, 1073971, 6650-00-585-1851, 00-585-1851, 6650005851851, 005851851
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-585-1851 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE CONVEX
DOUBLE CONVEX
Cross Reference | NSN 6650-00-585-1851
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1073971 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| 1073971 | 20838 | OPTICS FOR INDUSTRY INC |
Technical Data | NSN 6650-00-585-1851
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| SINGLE LENS STYLE | DOUBLE CONVEX |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX |
| DIAMETER | 1.29803 INCHES MINIMUM AND 1.29921 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.22047 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 3.02598 INCHES |
| BACK FOCAL LENGTH | 2.97558 INCHES |
| FRONT FOCAL LENGTH | 2.92992 INCHES |
| REFRACTION INDEX | 1.5171 NOMINAL |
| ABBE CONSTANT | 64.500 |
| FSC APPLICATION DATA | FIRE CONTROL INSTRUMENT LEVELS OPTICAL SIGHTING AND RANGINE |