PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include material: NICKEL ALLOY, body_style: EXTERNAL FLANGE, corner_shape: SQUARE ALL CORNERS, overall_length: 0.875 INCHES NOMINAL IN, flange_diameter: 6.500 INCHES NOMINAL IN, counterbore_depth: 0.250 INCHES NOMINAL IN. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-398-8504, 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.
| material | NICKEL ALLOY |
| body_style | EXTERNAL FLANGE |
| corner_shape | SQUARE ALL CORNERS |
| overall_length | 0.875 INCHES NOMINAL IN |
| flange_diameter | 6.500 INCHES NOMINAL IN |
| counterbore_depth | 0.250 INCHES NOMINAL IN |
| bolt_hole_quantity | 6 |
| body_inside_diameter | 4.845 INCHES NOMINAL IN |
| bolt_circle_diameter | 5.875 INCHES NOMINAL IN |
| counterbore_diameter | 0.438 INCHES NOMINAL IN |
| body_outside_diameter | 5.374 INCHES NOMINAL IN |
| left_side_flange_thickness | 0.250 INCHES NOMINAL IN |
| NSN | 4320-00-398-8504 |
| BOLT HOLE QUANTITY | 6 |
| COUNTERBORE DEPTH | 0.250 INCHES NOMINAL IN |
| OVERALL LENGTH | 0.875 INCHES NOMINAL IN |
| BODY OUTSIDE DIAMETER | 5.374 INCHES NOMINAL IN |
| COUNTERBORE DIAMETER | 0.438 INCHES NOMINAL IN |
| BODY INSIDE DIAMETER | 4.845 INCHES NOMINAL IN |
| CORNER SHAPE | SQUARE ALL CORNERS |
| UNTHREADED MOUNTING HOLE DIAMETER | 0.281 INCHES NOMINAL IN |
| LEFT SIDE FLANGE THICKNESS | 0.250 INCHES NOMINAL IN |
| FLANGE DIAMETER | 6.500 INCHES NOMINAL IN |