NSN 6650-00-759-3586
Part Details | OPTICAL INSTRUMENT LENS
6650-00-759-3586 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: 7593586, 6650-00-759-3586, 00-759-3586, 6650007593586, 007593586
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-759-3586 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-759-3586
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 7593586 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-759-3586
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 2.200 INCHES NOMINAL |
| AXIAL THICKNESS | 0.450 INCHES NOMINAL AND 0.232 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.682 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.500 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 6.614 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 2.728 INCHES |
| EQUIVALENT FOCAL LENGTH | 12.237 INCHES |
| BACK FOCAL LENGTH | 11.879 INCHES |
| REFRACTION INDEX | 1.5110 NOMINAL AND 1.6053 NOMINAL |
| ABBE CONSTANT | B63.500$$B43.600 |
| FSC APPLICATION DATA | PERISCOPE,M20A28 INTEGRATED WITH FIRE CONTROL EQUIPMENT |