NSN 6650-00-985-5332
Part Details | OPTICAL INSTRUMENT LENS
6650-00-985-5332 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: 10515836, 10515836, 6650-00-985-5332, 00-985-5332, 6650009855332, 009855332
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-985-5332 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-985-5332
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 10515836 | 4K539 | POLYTECHNIC INDUSTRIES, INC. |
| 10515836 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-985-5332
| 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 | 2.047 INCHES NOMINAL |
| AXIAL THICKNESS | 0.461 INCHES NOMINAL AND 0.118 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.579 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.398 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 4.275 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 2.809 INCHES |
| EQUIVALENT FOCAL LENGTH | 6.790 INCHES |
| BACK FOCAL LENGTH | 6.501 INCHES |
| FRONT FOCAL LENGTH | 5.922 INCHES |
| REFRACTION INDEX | 1.5110 NOMINAL AND 1.6170 NOMINAL |
| ABBE CONSTANT | B63.500$$B36.600 |
| FSC APPLICATION DATA | PERISCOPE /FIRE CONTROL/ XM36 |
