NSN 6650-00-828-6553
Part Details | OPTICAL INSTRUMENT LENS
6650-00-828-6553 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: 10512965, 6650-00-828-6553, 00-828-6553, 6650008286553, 008286553
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-828-6553 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-828-6553
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 10512965 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-828-6553
| 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 | MENISCUS DIVERGING AND DOUBLE CONVEX |
| DIAMETER | 1.779 INCHES NOMINAL |
| AXIAL THICKNESS | 0.150 INCHES NOMINAL AND 0.320 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.470 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.375 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 5.300 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 1.970 INCHES |
| EQUIVALENT FOCAL LENGTH | 7.906 INCHES |
| BACK FOCAL LENGTH | 7.694 INCHES |
| REFRACTION INDEX | 1.6210 NOMINAL AND 0.5411 NOMINAL |
| ABBE CONSTANT | B36.200$$B59.900 |
| FSC APPLICATION DATA | TELESCOPE,ELBOW T176E2 AND T176E3,INTEGRATED WITH FIRE CONTROL EQUIPMENT |