NSN 6650-00-683-9558
Part Details | OPTICAL INSTRUMENT LENS
6650-00-683-9558 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: 6650006839558, MIL013830, 8574719, 6650-00-683-9558, 00-683-9558, 6650006839558, 006839558
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-683-9558 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-683-9558
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6650006839558 | A00AM | E.C.A ETABLISSEMENT CENTRALDESAPPROVISIONNEMENTS DES FORCES |
| MIL013830 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 8574719 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-683-9558
| 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 | 2.067 INCHES NOMINAL |
| AXIAL THICKNESS | 0.236 INCHES NOMINAL AND 0.158 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.394 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.3125 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 10.406 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 7.551 INCHES |
| EQUIVALENT FOCAL LENGTH | 16.883 INCHES |
| BACK FOCAL LENGTH | 16.809 INCHES |
| REFRACTION INDEX | 1.5170 NOMINAL AND 1.6730 NOMINAL |
| ABBE CONSTANT | B64.500$$B32.200 |
| FSC APPLICATION DATA | TELESCOPE,M105C,INTEGRATED WITH FIRE CONTROL EQUIPMENT |