NSN 6650-00-995-5741
Part Details | OPTICAL INSTRUMENT LENS
6650-00-995-5741 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: 10514394, 6650-00-995-5741, 00-995-5741, 6650009955741, 009955741
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1962 | 00-995-5741 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-995-5741
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 10514394 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-995-5741
| 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 CONCAVE AND DOUBLE CONVEX |
| DIAMETER | 0.906 INCHES NOMINAL |
| AXIAL THICKNESS | 0.063 INCHES NOMINAL AND 0.335 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.398 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.375 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 1.732 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 0.753 INCHES |
| EQUIVALENT FOCAL LENGTH | 4.392 INCHES |
| BACK FOCAL LENGTH | 4.991 INCHES |
| FRONT FOCAL LENGTH | 4.616 INCHES |
| REFRACTION INDEX | 1.6490 NOMINAL AND 1.5170 NOMINAL |
| ABBE CONSTANT | B33.700$$B64.500 |
| FSC APPLICATION DATA | BINOCULAR,XM18 |
