NSN 6650-00-532-1551
Part Details | OPTICAL INSTRUMENT LENS
6650-00-532-1551 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: 5321551, 6650-00-532-1551, 00-532-1551, 6650005321551, 005321551
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-532-1551 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-532-1551
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 5321551 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-532-1551
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 2.283 INCHES NOMINAL |
| AXIAL THICKNESS | 0.886 INCHES NOMINAL AND 0.157 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 1.043 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.729 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -3.150 INCHES AND 4.911 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -1.418 INCHES |
| EQUIVALENT FOCAL LENGTH | 2.998 INCHES |
| BACK FOCAL LENGTH | 2.753 INCHES |
| FRONT FOCAL LENGTH | 1.710 INCHES |
| REFRACTION INDEX | 1.6970 NOMINAL AND 1.7200 NOMINAL |
| ABBE CONSTANT | B56.100$$B29.300 |
| FSC APPLICATION DATA | TELESCOPE,M69G,INTEGRATED WITH FIRE CONTROL EQUIP |