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National 380001A Wheel Seal - Front Inner
National 380001A Wheel Seal Overview
National 380001A is an oil bath wheel seal built for driveline and axle sealing applications where precise dimensions and PTFE construction matter. It is sized with a 3.500 in. shaft diameter, 4.852 in. outside diameter, and 0.910 in. width for applications that call for this exact seal profile.
National has supplied sealing solutions for more than 75 years, and this wheel seal reflects that focus on dimensional accuracy and modern vehicle requirements. It is a direct-fit style option for service work on axle and hub assemblies that use an oil bath seal design.
Key Features
- Part number: 380001A
- Wheel seal / oil bath seal for driveline and axle service
- PTFE sealing material for demanding sealing applications
- Outside diameter: 4.852 in. (123.110 mm)
- Housing bore: 4.840 in. (122.990 mm)
- Shaft diameter: 3.500 in. (88.900 mm)
- Width: 0.910 in. (23.110 mm)
- Installation tool reference: RD307
Detailed Description
National 380001A is engineered as an oil bath seal for axle and wheel-end assemblies that require a precise housing bore and shaft interface. The PTFE sealing surface supports consistent sealing performance in applications where lubricant retention and contamination control are critical. For buyers searching for a National wheel seal, oil bath seal, or 380001A replacement, this part provides the dimensional details needed to match the original service specification.
This part cross-references Timken 10P35000 for the same application. It is also listed among interchange references used in service catalogs for a range of axle and driveline platforms, including Ford F-150 and Ford E-Series applications where the correct seal dimensions are required.
What It Helps Address
- Oil seepage at the wheel-end seal area
- Contamination entering the axle or hub assembly
- Loss of lubricant from an oil bath wheel-end setup
- Seal wear caused by age, heat, or mileage
- Service replacement needs for a worn National 380001A seal
Installation Notes and Tips
Verify shaft diameter, housing bore, outside diameter, and width before installation. Use the specified installation tool reference RD307 when the service procedure calls for it, and inspect the sealing surface, hub, and bore for scoring or corrosion before fitting the new seal. For fitment-based searches, this part is commonly referenced for Ford F-150 and Ford E-Series wheel-end service where the listed dimensions match the original seal.
Quality Assurance
National has a long history in sealing technology and continues to develop sealing solutions for current vehicle service needs. The 380001A is built to the listed dimensional specifications and material type for accurate replacement in applications that require this oil bath seal design.
| Brand | National |
|---|---|
| Part Number | 380001A |
| Width | 0.910 |
| Width | 23.110 |
| Outside Diameter | 123.110 |
| Outside Diameter | 4.852 |
| Housing Bore | 122.990 |
| Housing Bore | 4.840 |
| Housing Bore (Inch) | 4.840 |
| Housing Bore (MM) | 122.990 |
| Installation Tool | Rd307 |
| Material | Ptfe |
| Outside Diameter (Inch) | 4.852 |
| Outside Diameter (mm) | 123.110 |
| Part Description | Oil bath seal |
| Series | 380000 |
| Shaft (Inch) | 3.500 |
| Shaft (MM) | 88.900 |
| Shaft Diameter | 3.500 |
| Shaft Diameter | 88.900 |
| Type | 10 |
| Unit of Dimension | Inch |
| Width (Inch) | 0.910 |
| Width (mm) | 23.110 |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.