NSN 6650-00-757-5135
Part Details | OPTICAL INSTRUMENT LENS
6650-00-757-5135 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: 7575135, 6650-00-757-5135, 00-757-5135, 6650007575135, 007575135
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-757-5135 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-757-5135
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 7575135 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-757-5135
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND PLANO-CONCAVE |
| DIAMETER | 1.370 INCHES NOMINAL |
| AXIAL THICKNESS | 0.490 INCHES NOMINAL AND 0.061 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.551 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.374 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 1.313 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 1.180 INCHES |
| EQUIVALENT FOCAL LENGTH | 2.486 INCHES |
| BACK FOCAL LENGTH | 2.094 INCHES |
| REFRACTION INDEX | 1.6109 NOMINAL AND 1.6490 NOMINAL |
| ABBE CONSTANT | B57.200$$B33.800 |
| FSC APPLICATION DATA | PERISCOPE,M10G,INTEGRATED WITH FIRE CONTROL EQUIPMENT |