NSN 6650-00-389-3507
Part Details | OPTICAL INSTRUMENT LENS
6650-00-389-3507 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: 21272FPC12, 21272-FPC12, 105367PC12, 105367PC12, 6650-00-389-3507, 00-389-3507, 6650003893507, 003893507
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-389-3507 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
DOUBLET
Cross Reference | NSN 6650-00-389-3507
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 21272-FPC12 | 4L762 | BAUSCH AND LOMB INCOPTICAL SYSTEMS DIV |
| 105367PC12 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| 105367PC12 | 53711 | NAVAL SEA SYSTEMS COMMAND |
Technical Data | NSN 6650-00-389-3507
| Characteristic | Specifications |
|---|---|
| COMPOUND LENS STYLE | DOUBLET |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| DIAMETER | 26.0 MILLIMETERS NOMINAL |
| AXIAL THICKNESS | 2.0 MILLIMETERS NOMINAL AND 1.0 MILLIMETERS NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 3.0 MILLIMETERS NOMINAL |
| ELEMENT LEFT SURFACE RADIUS | 26.5 MILLIMETERS AND -48.6 MILLIMETERS |
| ELEMENT RIGHT SURFACE RADIUS | 48.6 MILLIMETERS AND 46.0 MILLIMETERS |
| EQUIVALENT FOCAL LENGTH | 3.236 CENTIMETERS |
| BACK FOCAL LENGTH | 3.112 CENTIMETERS |
| FRONT FOCAL LENGTH | 3.168 CENTIMETERS |
| REFRACTION INDEX | 1.5740 NOMINAL AND 1.6170 NOMINAL |
| ABBE CONSTANT | B57.600$$B36.600 |