In-stock parts
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In-stock parts
Order by 2PM MST
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2045 West Buckeye Road
Phoenix AZ 85009
United States
The UnitedBuilt S13271MS outboard ball bearing is the double-row 5306-C3 bearing used at item 18 in the selected M3ZRM and M3ZRMS shaft assemblies. It is the outboard component, not the single-row inboard bearing.
Select S13271MS when servicing that bearing position. This product is the bearing, not a complete shaft assembly or bearing set. Confirm the bearing identification and the pump's shaft arrangement before choosing additional components for the repair.
Using the outboard position together with the 5306-C3 designation helps keep this component separate from the inboard S13270MS bearing. Similar pump model names do not make the two bearings interchangeable. Compare the removed bearing and check the adjoining components before ordering a replacement or planning a more extensive rebuild.
| Specification | Detail |
|---|---|
| Part number | S13271MS |
| Bearing designation | 5306-C3 |
| Construction | Double-row ball bearing |
| Position | Outboard, item 18 |
| Selection | Application |
|---|---|
| Rope-seal shaft kits | B80698MS (CW) and B80696MS (CCW) |
| Mechanical-seal shaft kits | B80699MS (CW) and B80697MS (CCW) |
| Different bearing | S13270MS is the single-row inboard component |
| Check | What to confirm |
|---|---|
| Bearing identity | Match S13271MS, the 5306-C3 designation and outboard position. |
| Related parts | Review the shaft, housing, retaining components and bearing cap required for the repair. |
| Service requirements | Follow the applicable installation and lubrication instructions; do not assume ratings from the bearing number alone. |
Need help selecting the correct replacement part? Contact UnitedBuilt through online chat, email parts@unitedbuilt.com, or call 602-253-7750 with your pump model, existing part number or photos.
| Model Number | 5306-C3 |
|---|---|
| Weight | 2.0 lb |