820-0009: TRANSISTOR.
The TRANSISTOR is a the manufacturer industrial component. Key specifications include diameter: 1.500 INCHES NOMINAL IN, material: GLASS OPTICAL, abbe_constant: 58.600 AND 38.000, overall_length: 0.188 INCHES NOMINAL IN, axial_thickness: 0.202 INCHES NOMINAL AND 0.150 INCHES NOMINAL IN, mounting_method: TERMINAL. This part is cataloged in the U.S.
Government catalog under NSN 6650-00-507-9256, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| diameter | 1.500 INCHES NOMINAL IN |
| material | GLASS OPTICAL |
| abbe_constant | 58.600 AND 38.000 |
| overall_length | 0.188 INCHES NOMINAL IN |
| axial_thickness | 0.202 INCHES NOMINAL AND 0.150 INCHES NOMINAL IN |
| mounting_method | TERMINAL |
| terminal_length | 0.500 INCHES MINIMUM IN |
| overall_diameter | 0.219 INCHES NOMINAL IN |
| refraction_index | 1.5230 NOMINAL AND 1.6050 NOMINAL |
| back_focal_length | 14.932 INCHES IN |
| compound_lens_style | DOUBLET |
| fsc_application_data | FINDER,RANGE,T42E1,INTEGRATED WITH FIRE CONTROL EQUIPMENT |
| NSN | 6650-00-507-9256 |
| FSC APPLICATION DATA | FINDER,RANGE,T42E1,INTEGRATED WITH FIRE CONTROL EQUIPMENT |
| INDIVIDUAL LENS STYLE | PLANO-CONCAVE AND MENISCUS DIVERGING |
| BACK FOCAL LENGTH | 14.932 INCHES IN |
| ELEMENT LEFT SURFACE RADIUS | 42.390 MILLIMETERS MM |
| EQUIVALENT FOCAL LENGTH | 14.937 INCHES IN |
| ELEMENT RIGHT SURFACE RADIUS | 3.117 INCHES IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE |
| DIAMETER | 1.500 INCHES NOMINAL IN |
| ABBE CONSTANT | 58.600 AND 38.000 |
| AXIAL THICKNESS | 0.202 INCHES NOMINAL AND 0.150 INCHES NOMINAL IN |