423P: PISTON,INTERNAL COMBUSTION ENGIN.
PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include weight: 21.0 OUNCES OZ, diameter: 4.000 INCHES NOMINAL IN, material: ALUMINUM ALLOY, cut_depth: 0.970 INCHES NOMINAL IN, head_style: CONCAVE, oil_groove: INCLUDED. This part is cataloged in the U.S.
Government catalog under NSN 2805-00-374-9457, 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.
| weight | 21.0 OUNCES OZ |
| diameter | 4.000 INCHES NOMINAL IN |
| material | ALUMINUM ALLOY |
| cut_depth | 0.970 INCHES NOMINAL IN |
| head_style | CONCAVE |
| oil_groove | INCLUDED |
| skirt_type | SOLID |
| carbon_groove | NOT INCLUDED |
| overall_height | 3.190 INCHES NOMINAL IN |
| surface_finish | FINISHED |
| oil_passage_type | HOLE LOCATION NOT OTHERWISE SPECIFIED |
| pin_hole_bushing | NOT INCLUDED |
| NSN | 2805-00-374-9457 |
| OVERALL HEIGHT | 3.881 INCHES MINIMUM AND 3.885 INCHES MAXIMUM IN |
| FSC APPLICATION DATA | GASOLINE ENGINE,NONAIRCRAFT |
| CARBON GROOVE | NOT INCLUDED |
| RING GROOVE WIDTH | 0.1255 INCHES MINIMUM AND 0.1265 INCHES MAXIMUM SECOND RING IN |
| RING GROOVE WIDTH | 0.0960 INCHES MINIMUM AND 0.0970 INCHES MAXIMUM FIRST RING IN |
| RING GROOVE WIDTH | 0.1255 INCHES MINIMUM AND 0.1265 INCHES MAXIMUM THIRD RING IN |
| DISTANCE BETWEEN PIN BOSSES | 1.500 INCHES NOMINAL IN |
| RETAINING RING GROOVE | INCLUDED |
| SURFACE FINISH | FINISHED |
| DIAMETER | 3.533 INCHES MINIMUM AND 3.537 INCHES MAXIMUM IN |