2128340: PISTON,INTERNAL COMBUSTION ENGIN.
PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include diameter: 4.125 INCHES NOMINAL IN, material: ALUMINUM, cut_depth: 0.750 INCHES NOMINAL IN, head_style: DISH, oil_groove: NOT INCLUDED, skirt_type: SOLID. This part is cataloged in the U.S.
Government catalog under NSN 2805-00-825-4564, 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 | 4.125 INCHES NOMINAL IN |
| material | ALUMINUM |
| cut_depth | 0.750 INCHES NOMINAL IN |
| head_style | DISH |
| oil_groove | NOT INCLUDED |
| skirt_type | SOLID |
| carbon_groove | NOT INCLUDED |
| overall_height | 3.840 INCHES NOMINAL IN |
| surface_finish | FINISHED |
| pin_hole_bushing | NOT INCLUDED |
| pinhole_diameter | 1.0940 INCHES NOMINAL IN |
| special_features | CAST IRON RING GROOVE PROTECTOR FOR NUMBER 1 POSITION GROOVE,STEEL STRUTS PROVIDED IN PISTON |
| NSN | 2805-00-825-4564 |
| OVERALL HEIGHT | 3.840 INCHES NOMINAL IN |
| FSC APPLICATION DATA | GASOLINE ENGINE,NONAIRCRAFT |
| CARBON GROOVE | NOT INCLUDED |
| RING GROOVE WIDTH | 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM FIRST RING IN |
| RING GROOVE WIDTH | 0.1880 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM SECOND RING IN |
| DISTANCE BETWEEN PIN BOSSES | 1.510 INCHES MINIMUM AND 1.540 INCHES MAXIMUM IN |
| RETAINING RING GROOVE | NOT INCLUDED |
| SURFACE FINISH | FINISHED |
| SUPPLEMENTARY FEATURES | OIL PASSAGE SLOT |
| DIAMETER | 4.125 INCHES NOMINAL IN |