

The Graco 150860 Full Square Nut is a durable fastening component designed for Graco spray equipment. It ensures secure assembly and resists rotation under load.
The Graco 150860 “Nut, Full Square” is a specialized square‑profile fastening nut designed for use in Graco fluid‑handling assemblies. This component ensures secure installation where anti‑rotation and flat surface bearing are required. Its usage spans across a number of Graco airless spray models.
| Feature | Benefit |
|---|---|
| Square‑profile design | Prevents rotation under vibration for a more reliable fastening solution. |
| High‐quality fastening material | Ensures long service life within industrial‑grade equipment used by Graco. |
| OEM‑specified part number 150860 | Matches Graco original spare parts listing ensuring compatibility and fit. |
Before installation, verify that your machine model appears in the compatibility list above. Even though the nut appears across multiple series, checking the exploded parts diagram for your specific model is recommended to ensure correct application. Using the wrong fastener may compromise assembly integrity or void warranty coverage.
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