3917A040: RING,PISTON.
The RING,PISTON is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, ring_style: CONCENTRIC, joint_style: VERTICAL JOINT, overall_width: 0.1860 INCHES MINIMUM AND 0.1865 INCHES MAXIMUM IN, radial_wall_thickness: 0.1700 INCHES MINIMUM AND 0.1800 INCHES MAXIMUM IN, bore_diameter_oversize: 0.040 INCHES IN. This part is cataloged in the U.S.
Government catalog under NSN 2805-00-383-8874, 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 | IRON OVERALL |
| ring_style | CONCENTRIC |
| joint_style | VERTICAL JOINT |
| overall_width | 0.1860 INCHES MINIMUM AND 0.1865 INCHES MAXIMUM IN |
| radial_wall_thickness | 0.1700 INCHES MINIMUM AND 0.1800 INCHES MAXIMUM IN |
| bore_diameter_oversize | 0.040 INCHES IN |
| standard_bore_diameter | 4.125 INCHES IN |
| cross-sectional_shape_style | STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL |
| oil_passage_type_and_quantity | 8 SLOT HORIZONTALLY THROUGH RING |
| NSN | 2805-00-383-8874 |
| BORE DIAMETER OVERSIZE | 0.040 INCHES IN |
| OVERALL WIDTH | 0.1860 INCHES MINIMUM AND 0.1865 INCHES MAXIMUM IN |
| CROSS-SECTIONAL SHAPE STYLE | STRAIGHT FACE, DOUBLE SCRAPER, VENTILATED OIL CONTROL |
| JOINT STYLE | VERTICAL JOINT |
| OIL PASSAGE TYPE AND QUANTITY | 1 GROOVE OUTSIDE PERIPHERY |
| OIL PASSAGE TYPE AND QUANTITY | 8 SLOT HORIZONTALLY THROUGH RING |
| RADIAL WALL THICKNESS | 0.1700 INCHES MINIMUM AND 0.1800 INCHES MAXIMUM IN |
| RING STYLE | CONCENTRIC |
| STANDARD BORE DIAMETER | 4.125 INCHES IN |
| MATERIAL | IRON OVERALL |
No substitute or cross-reference records for this part.