The Graco 166532 Nut Packing is an OEM retaining nut used to secure and adjust the packing stack inside Graco displacement pumps.
This Graco 166532 Nut Packing is used in specific Graco displacement pump assemblies. Below are the pump models that use this nut.
The Graco 166532 Nut Packing is an OEM retaining nut designed to secure the packing stack in the displacement pump. It keeps the packings in the correct position and ensures proper sealing around the pump rod. This nut must be tightened only enough to stop leakage, as over-tightening can cause premature packing wear.
| Part Number | 166532 |
|---|---|
| Part Type | Nut, Packing |
| Function | Secures and compresses the packing set inside the displacement pump assembly. |
| Installation Note | Tighten only enough to stop leakage—over-tightening may damage packings. |
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