NSN 6650-00-904-5683
Part Details | OPTICAL INSTRUMENT LENS
6650-00-904-5683 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: 8216013, 8216013, 6650-00-904-5683, 00-904-5683, 6650009045683, 009045683
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1960 | 00-904-5683 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
PLANO-CONCAVE
PLANO-CONCAVE
Cross Reference | NSN 6650-00-904-5683
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8216013 | 17578 | STERLING PRECISIONS OPTICS, INC.DBA STERLINGPRECISION.COM |
| 8216013 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-904-5683
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS OPTICAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| SINGLE LENS STYLE | PLANO-CONCAVE |
| INDIVIDUAL LENS STYLE | PLANO-CONCAVE |
| LENGTH | 4.750 INCHES NOMINAL |
| DIAMETER | 1.875 INCHES NOMINAL |
| AXIAL THICKNESS | 0.312 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | -76.482 INCHES |
| BACK FOCAL LENGTH | -76.700 INCHES |
| FRONT FOCAL LENGTH | -75.688 INCHES |
| REFRACTION INDEX | 1.5230 NOMINAL |
| ABBE CONSTANT | 58.600 |
| SPECIAL FEATURES | NON |
| FSC APPLICATION DATA | PERISCOPE,XM44 |
