PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include material: COPPER ALLOY, body_style: INTERNAL FLANGE W/EXTERNAL LOCKING FLANGE, corner_shape: SQUARE ALL CORNERS, overall_length: 1.438 INCHES NOMINAL IN, special_features: HUB ON LOCK SIDE 0.281 IN. LG AND 4.500 IN.
OD IN, distance_from_end: 0.312 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 4320-00-420-5443, 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 | COPPER ALLOY |
| body_style | INTERNAL FLANGE W/EXTERNAL LOCKING FLANGE |
| corner_shape | SQUARE ALL CORNERS |
| overall_length | 1.438 INCHES NOMINAL IN |
| special_features | HUB ON LOCK SIDE 0.281 IN. LG AND 4.500 IN. OD IN |
| distance_from_end | 0.312 INCHES NOMINAL IN |
| body_inside_diameter | 5.500 INCHES NOMINAL IN |
| body_outside_diameter | 6.375 INCHES NOMINAL IN |
| internal_flange_width | 1.062 INCHES NOMINAL IN |
| end_to_flange_distance | 0.844 INCHES NOMINAL IN |
| distance_between_flanges | 0.938 INCHES NOMINAL IN |
| distance_below_centerline | 0.188 INCHES NOMINAL IN |
| NSN | 4320-00-420-5443 |
| INTERNAL FLANGE INSIDE DIAMETER | 3.875 INCHES NOMINAL IN |
| OVERALL LENGTH | 1.438 INCHES NOMINAL IN |
| BODY INSIDE DIAMETER | 5.500 INCHES NOMINAL IN |
| DISTANCE BETWEEN FLANGES | 0.938 INCHES NOMINAL IN |
| DISTANCE FROM END | 0.312 INCHES NOMINAL IN |
| MATERIAL | COPPER ALLOY |
| SPECIAL FEATURES | HUB ON LOCK SIDE 0.281 IN. LG AND 4.500 IN. OD IN |
| DISTANCE BELOW CENTERLINE | 0.188 INCHES NOMINAL IN |
| LEFT SIDE FLANGE THICKNESS | 0.250 INCHES NOMINAL IN |
| INTERNAL FLANGE WIDTH | 1.062 INCHES NOMINAL IN |