NSN 6650-00-210-4388
Part Details | OPTICAL INSTRUMENT LENS
6650-00-210-4388 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: MIL1802, 1049121, 1049121, 1049121, 6650-00-210-4388, 00-210-4388, 6650002104388, 002104388
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-210-4388 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-210-4388
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MIL1802 | 06175 | BAUSCH & LOMB INC |
| 1049121 | 06076 | F AND H MFG CORP |
| 1049121 | 14001 | GRAYCO OPTICAL CORP |
| 1049121 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 6650-00-210-4388
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 2.046 INCHES MINIMUM AND 2.047 INCHES MAXIMUM |
| AXIAL THICKNESS | 0.512 INCHES NOMINAL AND 0.118 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.630 INCHES NOMINAL |
| COMPOUND LENS EDGE THICKNESS | 0.263 INCHES NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | -2.047 INCHES AND 3.226 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -2.047 INCHES AND -6.169 INCHES |
| EQUIVALENT FOCAL LENGTH | 4.034 INCHES |
| BACK FOCAL LENGTH | 3.920 INCHES |
| FRONT FOCAL LENGTH | 3.752 INCHES |
| REFRACTION INDEX | 1.6111 NOMINAL AND 1.7200 NOMINAL |
| ABBE CONSTANT | B58.800$$B29.300 |
| FSC APPLICATION DATA | OPTICAL SIGHTING AND RANGING EQUIPMENT |