1061P20: PISTON,INTERNAL COMBUSTION ENGIN.
PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include diameter: 3.910 INCHES NOMINAL IN, material: ALUMINUM, oversize: 0.020 INCHES NOMINAL IN, cut_depth: 0.340 INCHES NOMINAL IN, head_style: CONCAVE, oil_groove: INCLUDED. This part is cataloged in the U.S.
Government catalog under NSN 2805-00-574-9083, 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 | 3.910 INCHES NOMINAL IN |
| material | ALUMINUM |
| oversize | 0.020 INCHES NOMINAL IN |
| cut_depth | 0.340 INCHES NOMINAL IN |
| head_style | CONCAVE |
| oil_groove | INCLUDED |
| skirt_type | SOLID |
| carbon_groove | NOT INCLUDED |
| overall_height | 3.206 INCHES MINIMUM AND 3.216 INCHES MAXIMUM IN |
| surface_finish | FINISHED |
| pin_hole_bushing | NOT INCLUDED |
| pinhole_diameter | 0.9840 INCHES NOMINAL IN |
| NSN | 2805-00-574-9083 |
| OVERALL HEIGHT | 3.206 INCHES MINIMUM AND 3.216 INCHES MAXIMUM IN |
| CARBON GROOVE | NOT INCLUDED |
| RING GROOVE WIDTH | 0.0790 INCHES MINIMUM AND 0.0800 INCHES MAXIMUM FIRST RING IN |
| RING GROOVE WIDTH | 0.0790 INCHES MINIMUM AND 0.0800 INCHES MAXIMUM SECOND RING IN |
| RING GROOVE WIDTH | 0.1870 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM THIRD RING IN |
| DISTANCE BETWEEN PIN BOSSES | 1.440 INCHES NOMINAL IN |
| RETAINING RING GROOVE | INCLUDED |
| SURFACE FINISH | FINISHED |
| DIAMETER | 3.910 INCHES NOMINAL IN |
| RING GROOVE DIAMETER | 3.461 INCHES MINIMUM AND 3.471 INCHES MAXIMUM FIRST RING IN |