PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include weight: 16.3 OUNCES OZ, diameter: 3.300 INCHES NOMINAL IN, material: ALUMINUM ALLOY, overall_height: 3.406 INCHES NOMINAL IN, surface_finish: FINISHED, pin_hole_bushing: 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 4320-00-126-5971, 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 | 16.3 OUNCES OZ |
| diameter | 3.300 INCHES NOMINAL IN |
| material | ALUMINUM ALLOY |
| overall_height | 3.406 INCHES NOMINAL IN |
| surface_finish | FINISHED |
| pin_hole_bushing | INCLUDED |
| pinhole_diameter | 0.8506 INCHES NOMINAL IN |
| ring_groove_quantity | 4 |
| retaining_ring_groove | INCLUDED |
| finished_size_designation | STANDARD |
| pin_type_for_which_designed | FLOATING |
| NSN | 4320-00-126-5971 |
| BODY INSIDE DIAMETER | 1.6220 INCHES NOMINAL IN |
| OVERALL LENGTH | 4.1250 INCHES NOMINAL IN |
| KEYWAY DIMENSION | 0.0937 INCHES NOMINAL INTERNAL KEYWAY DEPTH IN |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| CORNER SHAPE | SQUARE ALL CORNERS |
| STYLE DESIGNATOR | SOLID, PLAIN, NO OUTSIDE FLANGES |
| BODY OUTSIDE DIAMETER | 2.0660 INCHES NOMINAL IN |
| KEYWAY DIMENSION | 0.1875 INCHES NOMINAL INTERNAL KEYWAY WIDTH IN |
| KEYWAY DIMENSION | 1.0000 INCHES NOMINAL INTERNAL KEYWAY LENGTH IN |