NSN 6650-00-382-1881
Part Details | OPTICAL INSTRUMENT LENS
6650-00-382-1881 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: LD172589SHT11GP105, 685622PC12, 685622PC1-2, LD172589GP44REVD, LD172589GP105REVD, LD172589SHT11GP105, LD172589SHT11GP105, 6650-00-382-1881, 00-382-1881, 6650003821881, 003821881
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-382-1881 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-382-1881
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| LD172589SHT11GP105 | 14001 | GRAYCO OPTICAL CORP |
| 685622PC1-2 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| LD172589GP44REVD | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| LD172589GP105REVD | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| LD172589SHT11GP105 | 20838 | OPTICS FOR INDUSTRY INC |
| LD172589SHT11GP105 | 54985 | WOLLENSAK OPTICAL CO |
Technical Data | NSN 6650-00-382-1881
| 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 | 1.535 INCHES NOMINAL |
| AXIAL THICKNESS | 0.472 INCHES NOMINAL AND 0.118 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.591 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.331 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -1.614 INCHES AND 1.575 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -1.614 INCHES |
| EQUIVALENT FOCAL LENGTH | 3.111 INCHES |
| BACK FOCAL LENGTH | 2.700 INCHES |
| FRONT FOCAL LENGTH | 3.156 INCHES |
| REFRACTION INDEX | 1.5725 NOMINAL AND 1.6439 NOMINAL |
| ABBE CONSTANT | B57.500$$B33.800 |
| FSC APPLICATION DATA | 1. OPTICAL SIGHTING AND RANGING EQUIPMENT |