NSN 6650-00-692-1535
Part Details | OPTICAL INSTRUMENT LENS
6650-00-692-1535 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: 1240006921535, 8270615, 6650-00-692-1535, 00-692-1535, 6650006921535, 006921535
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-692-1535 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-692-1535
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1240006921535 | SCY13 | E.C.A ETABLISSEMENTCENTRALD'APPROVISIONNEMENT DES |
| 8270615 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-692-1535
| 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 MENISCUS DIVERGING |
| DIAMETER | 1.890 INCHES NOMINAL |
| WIDTH | 0.694 INCHES NOMINAL |
| AXIAL THICKNESS | 0.740 INCHES NOMINAL AND 0.158 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.898 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.557 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 3.266 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 1.010 INCHES |
| EQUIVALENT FOCAL LENGTH | 3.141 INCHES |
| BACK FOCAL LENGTH | 2.879 INCHES |
| REFRACTION INDEX | 1.5170 NOMINAL AND 1.6210 NOMINAL |
| ABBE CONSTANT | B64.500$$B36.200 |
| FSC APPLICATION DATA | WIGHT PERISCOPE,INTEGRATED WITH FIRE CONTROL EQUIPMENT |