Macnaught TB40S Cylinder Base Assembly, NPT
Available
The Macnaught TB40S is the NPT cylinder base assembly for the T512 air-operated oil pump. The cylinder base is the part at the bottom of the air cylinder.
Order TB40S instead of the BSP version TB39S. For a zinc pump the NPT version is TB40-1S. BSP is the pipe thread used outside the USA and Canada, and NPT is the US one.
Where this product is used
- Replacing a damaged cylinder base on a T512 pump with NPT threads
- Rebuilding a T512 pump
Features
- Cylinder base assembly for the T512 air-operated oil pump
- Part numbers: TB39S aluminium BSP, TB39-1S zinc BSP, TB40S aluminium NPT, TB40-1S zinc NPT
- Order the NPT version in place of the BSP one
- BSP is used outside the USA and Canada and NPT inside them
Key specifications
| Specification | Detail |
|---|---|
| Brand | Macnaught |
| Part number | TB40S |
| Part type | Cylinder base assembly (NPT) |
| Fits | Macnaught T512 oil pump (T512S-01, T512T-01) |
| Thread version | NPT |
| BSP version | TB39S |
| Zinc NPT version | TB40-1S |
Supplied with
- Cylinder base assembly (NPT)
Related Macnaught products
- Macnaught OILMASTER 5:1 Stub Pump T512S-01: Suits this product
- Macnaught OILMASTER 5:1 Air-operated Drum Pump (200L drum) T512T-01: Suits this product
- Macnaught Cylinder Base Assembly - BSP Zinc TB39-1S: Same part, other version
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Macnaught Cylinder Base Assembly - NPT TB40S
SKU: A0146043 | Model: TB40S
The Macnaught TB40S is the NPT cylinder base assembly for the T512 air-operated oil pump. Order it in place of the BSP TB39S.

