NSN 6650-00-382-1827
Part Details | OPTICAL INSTRUMENT LENS
6650-00-382-1827 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: 3000031, LD172589GP39, 3000031, LD172589GP39, 6650-00-382-1827, 00-382-1827, 6650003821827, 003821827
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-382-1827 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-382-1827
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 3000031 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| LD172589GP39 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| 3000031 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| LD172589GP39 | 53711 | NAVAL SEA SYSTEMS COMMAND |
Technical Data | NSN 6650-00-382-1827
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND PLANO-CONCAVE |
| DIAMETER | 1.772 INCHES NOMINAL |
| AXIAL THICKNESS | 0.669 INCHES NOMINAL AND 0.158 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.827 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.534 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -1.488 INCHES AND 1.488 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -1.488 INCHES |
| EQUIVALENT FOCAL LENGTH | 2.905 INCHES |
| BACK FOCAL LENGTH | 2.967 INCHES |
| FRONT FOCAL LENGTH | 2.333 INCHES |
| REFRACTION INDEX | 1.5740 NOMINAL AND 1.6490 NOMINAL |
| ABBE CONSTANT | B57.700$$B33.400 |
| FSC APPLICATION DATA | FIRE CONTROL,TELESCOPE MK 63 |
