NSN 6650-00-692-1533
Part Details | OPTICAL INSTRUMENT LENS
6650-00-692-1533 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: 1240006921533, 8270612, 6650-00-692-1533, 00-692-1533, 6650006921533, 006921533
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-692-1533 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-692-1533
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1240006921533 | SCY13 | E.C.A ETABLISSEMENTCENTRALD'APPROVISIONNEMENT DES |
| 8270612 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-692-1533
| 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 | 0.984 INCHES NOMINAL |
| AXIAL THICKNESS | 0.149 INCHES NOMINAL AND 0.119 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.268 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.239 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 6.561 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 2.010 INCHES |
| EQUIVALENT FOCAL LENGTH | 6.217 INCHES |
| BACK FOCAL LENGTH | 2.879 INCHES |
| REFRACTION INDEX | 1.5170 NOMINAL AND 1.6490 NOMINAL |
| ABBE CONSTANT | B64.500$$B33.800 |
| FSC APPLICATION DATA | SIGHT PERISCOPE M28,INTEGRATED WITH FIRE CONTROL EQUIPMENT |