163981: SEAL,PLAIN.
The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL SPRING, seal_width: 0.312 INCHES NOMINAL IN, construction: SOLID, housing_bore_diameter: 2.625 INCHES NOMINAL IN, accommodated_shaft_diameter: 1.750 INCHES NOMINAL IN, cross-sectional_shape_style: SINGLE LIP. This part is cataloged in the U.S.
Government catalog under NSN 6685-00-062-4404, 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 | STEEL SPRING |
| seal_width | 0.312 INCHES NOMINAL IN |
| construction | SOLID |
| housing_bore_diameter | 2.625 INCHES NOMINAL IN |
| accommodated_shaft_diameter | 1.750 INCHES NOMINAL IN |
| cross-sectional_shape_style | SINGLE LIP |
| NSN | 6685-00-062-4404 |
| FLOW CONTROL DEVICE | BUTTERFLY |
| OVERALL HEIGHT | 3.125 INCHES NOMINAL IN |
| FSC APPLICATION DATA | 1. ENGINE INSTRUMENTS,AIRCRAFT |
| SPRING OPERATED PRESSURE RELIEF | NOT PROVIDED |
| LARGEST OUTSIDE DIAMETER | 2.878 INCHES NOMINAL IN |
| MOUNTING METHOD | FLANGE |
| VALVE TRAVEL DISTANCE | 0.310 INCHES NOMINAL IN |
| OPERATING TEMP RATING | 186.0 FAHRENHEIT NOMINAL DEGF |
| THERMOSTAT TYPE | BIMETALLIC |
| USAGE DESIGN | DESIGNED FOR USE WITH ENGINE COOLANT |