NSN 6650-00-683-9548
Part Details | OPTICAL INSTRUMENT LENS
6650-00-683-9548 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: MIL013830, 8574710, 6650-00-683-9548, 00-683-9548, 6650006839548, 006839548
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-683-9548 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
MENISCUS CONVERGING
MENISCUS CONVERGING
Cross Reference | NSN 6650-00-683-9548
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MIL013830 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 8574710 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-683-9548
| Characteristic | Specifications |
|---|---|
| SINGLE LENS STYLE | MENISCUS CONVERGING |
| INDIVIDUAL LENS STYLE | MENISCUS CONVERGING |
| DIAMETER | 1.500 INCHES NOMINAL |
| AXIAL THICKNESS | 0.196 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.2018 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.1250 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 5.189 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 2.015 INCHES |
| EQUIVALENT FOCAL LENGTH | 4.459 INCHES |
| BACK FOCAL LENGTH | 4.530 INCHES |
| REFRACTION INDEX | 1.7200 NOMINAL |
| ABBE CONSTANT | 29.300 |
| FSC APPLICATION DATA | 1. TELESCOPE,M105C,INTEGRATED WITH FIRE CONTROL EQUIPMENT |