R878C190N: WINDOW,OBSERVATION.
The WINDOW,OBSERVATION is a the manufacturer industrial component. Key specifications include material: GLASS, edge_type: FLAT UNFINISHED, surface_finish: FINE FINISHED, overall_diameter: 5.750 INCHES NOMINAL IN, style_designator: CIRCULAR, overall_thickness: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 9330-00-581-5626, 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.
| material | GLASS |
| edge_type | FLAT UNFINISHED |
| ply_quantity | 1 |
| surface_finish | FINE FINISHED |
| overall_diameter | 5.750 INCHES NOMINAL IN |
| special_features | FOUR 0.438 IN. DIA MTG HOLES W/90 DEG SPACING ON 2.375 IN. RADIUSONE 0.750 IN. DIA ADJUSTMENT HOLE 0.312 IN. BELOW VERTICAL CENTER IN |
| style_designator | CIRCULAR |
| overall_thickness | 0.250 INCHES NOMINAL IN |
| fsc_application_data | METEOROLOGICAL INSTRUMENTS AND APPARATUS |
| material_transparency | CLEAR |
| environmental_protection | WEATHER RESISTANT |
| heat_absorbing_characteristic | HIGH LIGHT TRANSMISSION |
| NSN | 9330-00-581-5626 |
| FSC APPLICATION DATA | METEOROLOGICAL INSTRUMENTS AND APPARATUS |
| OVERALL DIAMETER | 5.750 INCHES NOMINAL IN |
| SURFACE FINISH | FINE FINISHED |
| OVERALL THICKNESS | 0.250 INCHES NOMINAL IN |
| MATERIAL TRANSPARENCY | CLEAR |
| STYLE DESIGNATOR | CIRCULAR |
| EDGE TYPE | FLAT UNFINISHED |
| PLY QUANTITY | 1 |
| SPECIAL FEATURES | FOUR 0.438 IN. DIA MTG HOLES W/90 DEG SPACING ON 2.375 IN. RADIUSONE 0.750 IN. DIA ADJUSTMENT HOLE 0.312 IN. BELOW VERTICAL CENTER IN |
| ENVIRONMENTAL PROTECTION | WEATHER RESISTANT |
No substitute or cross-reference records for this part.