NSN 6650-00-143-1889
Part Details | OPTICAL INSTRUMENT PRISM
6650-00-143-1889 A transparent item with at least two polished plane surfaces inclined toward each other, designed for use in optical instruments to reflect and/or refract a beam of light. It may have one or more mirrored surfaces for greater reflection. Includes optical wedges used to divert paths of light by refraction, but to a lesser degree. See also BEAM SPLITTER, OPTICAL INSTRUMENT.
Alternate Parts: 278691PC1, 278691PC1, 6650-00-143-1889, 00-143-1889, 6650001431889, 001431889
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-143-1889 | 21879 ( PRISM, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
ABBE
Cross Reference | NSN 6650-00-143-1889
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 278691PC1 | 4L762 | BAUSCH AND LOMB INCOPTICAL SYSTEMS DIV |
| 278691PC1 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-143-1889
| Characteristic | Specifications |
|---|---|
| SURFACE FINISH | GROUND AND POLISHED |
| STYLE DESIGNATOR | 2 ABBE |
| OVERALL DIAMETER | 34.0 MILLIMETERS NOMINAL |
| OVERALL THICKNESS | 4.0 MILLIMETERS NOMINAL |
| ANGLE IN DEG | 6.1 |
| REFRACTION INDEX | 1.5170 NOMINAL |
| LIGHT DEVIATION | 190.9 MIN |
| END ITEM IDENTIFICATION | RANGEFINDER MK58 |