AR51800: PISTON,INTERNAL COMBUSTION ENGIN.
PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include weight: 48.0 OUNCES OZ, diameter: 4.187 INCHES NOMINAL IN, material: ALUMINUM ALLOY, head_style: CAVITY, oil_groove: INCLUDED, skirt_type: SOLID. This part is cataloged in the U.S.
Government catalog under NSN 2815-00-005-7588, 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 | 48.0 OUNCES OZ |
| diameter | 4.187 INCHES NOMINAL IN |
| material | ALUMINUM ALLOY |
| head_style | CAVITY |
| oil_groove | INCLUDED |
| skirt_type | SOLID |
| carbon_groove | NOT INCLUDED |
| overall_height | 4.906 INCHES NOMINAL IN |
| surface_finish | FINISHED |
| pin_hole_bushing | NOT INCLUDED |
| pinhole_diameter | 1.5000 INCHES NOMINAL IN |
| ring_groove_width | 0.2510 INCHES NOMINAL THIRD RING IN |
| NSN | 2815-00-005-7588 |
| OVERALL HEIGHT | 4.906 INCHES NOMINAL IN |
| CARBON GROOVE | NOT INCLUDED |
| RING GROOVE WIDTH | 0.1000 INCHES NOMINAL FIRST RING IN |
| RING GROOVE WIDTH | 0.1000 INCHES NOMINAL SECOND RING IN |
| RING GROOVE WIDTH | 0.2510 INCHES NOMINAL THIRD RING IN |
| DISTANCE BETWEEN PIN BOSSES | 1.625 INCHES NOMINAL IN |
| RETAINING RING GROOVE | INCLUDED |
| SURFACE FINISH | FINISHED |
| DIAMETER | 4.187 INCHES NOMINAL IN |
| RING GROOVE DIAMETER | 3.739 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
No substitute or cross-reference records for this part.