NSN 6650-00-618-9398
Part Details | OPTICAL INSTRUMENT LENS
6650-00-618-9398 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: 1073970PC1, 1073970PC1, 1073970PC1, 6650-00-618-9398, 00-618-9398, 6650006189398, 006189398
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-618-9398 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-618-9398
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1073970PC1 | 06076 | F AND H MFG CORP |
| 1073970PC1 | 14001 | GRAYCO OPTICAL CORP |
| 1073970PC1 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-618-9398
| 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 DOUBLE CONCAVE |
| DIAMETER | 1.298 INCHES MINIMUM AND 1.299 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.417 INCHES NOMINAL AND 0.091 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.508 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.395 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 8.476 INCHES |
| BACK FOCAL LENGTH | 7.580 INCHES |
| FRONT FOCAL LENGTH | 9.109 INCHES |
| REFRACTION INDEX | 1.5171 NOMINAL AND 1.7200 NOMINAL |
| ABBE CONSTANT | B64.500$$B29.300 |
| FSC APPLICATION DATA | RANGE FINDER,FIRE CONTROL |