NSN 6650-00-683-9550
Part Details | OPTICAL INSTRUMENT LENS
6650-00-683-9550 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, 8574712, 6650-00-683-9550, 00-683-9550, 6650006839550, 006839550
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-683-9550 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-683-9550
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MIL013830 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 8574712 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-683-9550
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND DOUBLE CONCAVE |
| DIAMETER | 1.4370 INCHES NOMINAL |
| AXIAL THICKNESS | 0.622 INCHES NOMINAL AND 0.338 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.9600 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.8125 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 1.441 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 2.701 INCHES |
| EQUIVALENT FOCAL LENGTH | 6.340 INCHES |
| BACK FOCAL LENGTH | 9.270 INCHES |
| REFRACTION INDEX | 1.6110 NOMINAL AND 1.6170 NOMINAL |
| ABBE CONSTANT | B58.800$$B36.600 |
| FSC APPLICATION DATA | TELESCOPE,M105C,INTEGRATED WITH FIRE CONTROL EQUIPMENT |