PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include weight: 40.0 OUNCES OZ, diameter: 4.250 INCHES NOMINAL IN, material: ALUMINUM ALLOY, cut_depth: 1.000 INCHES NOMINAL IN, head_style: CONCAVE, oil_groove: INCLUDED. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-127-4706, 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 | 40.0 OUNCES OZ |
| diameter | 4.250 INCHES NOMINAL IN |
| material | ALUMINUM ALLOY |
| cut_depth | 1.000 INCHES NOMINAL IN |
| head_style | CONCAVE |
| oil_groove | INCLUDED |
| skirt_type | SOLID |
| carbon_groove | NOT INCLUDED |
| overall_height | 3.938 INCHES NOMINAL IN |
| surface_finish | SEMIFINISHED |
| oil_passage_type | SLOT LOCATION NOT OTHERWISE SPECIFIED |
| pin_hole_bushing | INCLUDED |
| NSN | 2805-00-127-4706 |
| DIAMETER | 4.250 INCHES NOMINAL IN |
| HEAD STYLE | CONCAVE |
| RING GROOVE WIDTH | 0.0940 INCHES NOMINAL THIRD RING IN |
| RING GROOVE WIDTH | 0.1250 INCHES NOMINAL FIRST RING IN |
| CUT DEPTH | 1.000 INCHES NOMINAL IN |
| RING GROOVE DIAMETER | 3.875 INCHES NOMINAL THIRD RING IN |
| SKIRT BOTTOM CUTAWAY FEATURE | INCLUDED |
| RING | NOT INCLUDED |
| PIN TYPE FOR WHICH DESIGNED | LOCKING |
| RETAINING RING GROOVE | NOT INCLUDED |