178466: PISTON,INTERNAL COMBUSTION ENGIN.
PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include weight: 48.0 OUNCES OZ, diameter: 3.875 INCHES NOMINAL IN, material: ALUMINUM ALLOY, head_style: CONCAVE, oil_groove: NOT INCLUDED, skirt_type: SOLID. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-017-8466, 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 | 3.875 INCHES NOMINAL IN |
| material | ALUMINUM ALLOY |
| head_style | CONCAVE |
| oil_groove | NOT INCLUDED |
| skirt_type | SOLID |
| carbon_groove | NOT INCLUDED |
| overall_height | 4.750 INCHES NOMINAL IN |
| surface_finish | FINISHED |
| oil_passage_type | HOLE LOCATION NOT OTHERWISE SPECIFIED |
| pin_hole_bushing | NOT INCLUDED |
| pinhole_diameter | 1.3740 INCHES NOMINAL IN |
| NSN | 5305-00-017-8466 |
| HEAD HEIGHT | 0.123 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN |
| FASTENER LENGTH | 0.500 INCHES NOMINAL IN |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.370 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN |
| THREAD LENGTH | 0.500 INCHES MAXIMUM IN |
| NONMACHINE THREAD STYLE | DOG TYPE (TYPE B OR C) |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| NOMINAL THREAD DIAMETER | 0.190 INCHES IN |
| HEAD STYLE | ROUND |
| PRIMARY WASHER STYLE | FLAT EXTERNAL TEETH |
| THREAD DIRECTION | RIGHT-HAND |
No substitute or cross-reference records for this part.