Graco 187614 Upper Locking Nut
- It secures essential pump components in place, resisting torque and vibration to prevent loosening during high-pressure operation.
- Genuine OEM
- Thread Size: 1-3/8 inch (specifically 1-3/8-18 UNEF-2B)
- This locking nut is compatible with several Graco sprayers and pump kits, including:
- Graco 190 ES (ST-style)
- Graco GM 3000
- Graco 290 Easy and 290 ProConnect
- Graco 450 ST, 455 ST, and ST Pro
- Graco Replacement Pump Kit 235699 (Model 241320)
Prop 65 Warning: This product can expose you to chemicals which are known to the State of California to cause cancer.
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