NSN 6650-00-155-1749
Part Details | OPTICAL INSTRUMENT LENS
6650-00-155-1749 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: 278698PC6, 278698PC6, 6650-00-155-1749, 00-155-1749, 6650001551749, 001551749
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-155-1749 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DIALYTE
Cross Reference | NSN 6650-00-155-1749
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 278698PC6 | 64804 | BAUSCH AND LOMB INCOPTHALMIC INSTRUMENT DIV |
| 278698PC6 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-155-1749
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS |
| COMPOUND LENS STYLE | DIALYTE |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 51.0 MILLIMETERS NOMINAL |
| AXIAL THICKNESS | 9.4 MILLIMETERS NOMINAL AND 5.3 MILLIMETERS NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 19.1 MILLIMETERS NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 241.4 MILLIMETERS AND -155.5 MILLIMETERS |
| ELEMENT RIGHT SURFACE RADIUS | 159.9 MILLIMETERS AND 906.3 MILLIMETERS |
| EQUIVALENT FOCAL LENGTH | 44.580 CENTIMETERS |
| BACK FOCAL LENGTH | 48.720 CENTIMETERS |
| FRONT FOCAL LENGTH | 48.070 CENTIMETERS |
| REFRACTION INDEX | 1.9170 NOMINAL AND 1.9170 NOMINAL |
| ABBE CONSTANT | B64.500$$B36.600 |
| END ITEM IDENTIFICATION | RANGEFINDER MK51 |