NSN 6650-01-070-3257
Part Details | OPTICAL INSTRUMENT LENS
6650-01-070-3257 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: 424751, 42475-1, 11780072, 6650-01-070-3257, 01-070-3257, 6650010703257, 010703257
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 10, 1979 | 01-070-3257 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE CONCAVE
DOUBLE CONCAVE
Cross Reference | NSN 6650-01-070-3257
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 42475-1 | 09344 | ROCKWELL COLLINS, INC.DBA RC DISPLAYS SYSTEMS |
| 11780072 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-01-070-3257
| Characteristic | Specifications |
|---|---|
| SINGLE LENS STYLE | DOUBLE CONCAVE |
| DIAMETER | 3.420 INCHES NOMINAL |
| WIDTH | 0.338 INCHES NOMINAL |
| AXIAL THICKNESS | 0.125 INCHES NOMINAL |
| REFRACTION INDEX | 1.7550 NOMINAL |
| ABBE CONSTANT | 27.600 |
| SPECIAL FEATURES | LEFT SIDE BEVELED TO 3.1 IN. DIA OVER 0.238 IN.; EDGES BLACKENED WITH LACQUER; MAGNESIUM FLOURIDE COATING |
