P861P020: PISTON,INTERNAL COMBUSTION ENGIN.
PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include diameter: 4.500 INCHES NOMINAL IN, material: IRON CAST, oversize: 0.020 INCHES NOMINAL IN, head_style: FLAT, oil_groove: NOT INCLUDED, skirt_type: SOLID. This part is cataloged in the U.S.
Government catalog under NSN 2805-00-352-3561, 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 | 4.500 INCHES NOMINAL IN |
| material | IRON CAST |
| oversize | 0.020 INCHES NOMINAL IN |
| head_style | FLAT |
| oil_groove | NOT INCLUDED |
| skirt_type | SOLID |
| carbon_groove | NOT INCLUDED |
| overall_height | 4.750 INCHES NOMINAL IN |
| surface_finish | FINISHED |
| pin_hole_bushing | NOT INCLUDED |
| pinhole_diameter | 1.2498 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN |
| ring_groove_width | 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM THIRD RING IN |
| NSN | 2805-00-352-3561 |
| OVERALL HEIGHT | 4.750 INCHES NOMINAL IN |
| FSC APPLICATION DATA | ENGINE,GASOLINE,EXCEPT AIRCRAFT PRIME MOVER |
| CARBON GROOVE | NOT INCLUDED |
| RING GROOVE WIDTH | 0.1575 INCHES MINIMUM AND 0.1585 INCHES MAXIMUM SECOND RING IN |
| RING GROOVE WIDTH | 0.1580 INCHES MINIMUM AND 0.1590 INCHES MAXIMUM FIRST RING IN |
| RING GROOVE WIDTH | 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM THIRD RING IN |
| DISTANCE BETWEEN PIN BOSSES | 1.938 INCHES NOMINAL IN |
| RETAINING RING GROOVE | INCLUDED |
| SURFACE FINISH | FINISHED |
| SUPPLEMENTARY FEATURES | OIL PASSAGE HOLE |