NSN 6650-00-828-6552
Part Details | OPTICAL INSTRUMENT LENS
6650-00-828-6552 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: 10512966, 6650-00-828-6552, 00-828-6552, 6650008286552, 008286552
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-828-6552 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-828-6552
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 10512966 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-828-6552
| 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 | PLANO-CONCAVE AND DOUBLE CONVEX |
| DIAMETER | 2.435 INCHES NOMINAL |
| AXIAL THICKNESS | 0.200 INCHES NOMINAL AND 0.700 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.900 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.625 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 3.390 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 3.390 INCHES |
| EQUIVALENT FOCAL LENGTH | 5.354 INCHES |
| BACK FOCAL LENGTH | 5.429 INCHES |
| REFRACTION INDEX | 1.7200 NOMINAL AND 1.6109 NOMINAL |
| ABBE CONSTANT | B29.300$$B57.200 |
| FSC APPLICATION DATA | TELESCOPE,ELBOW T175E2 AND T176E3 INTEGRATED WITH FIRE CONTROL EQUIPMENT |