Graco 108779 Straight Coiled Spring Pin
Graco 108779 Straight Coiled Spring Pin is a durable OEM fastener designed to securely hold key components in Graco sprayers and carts, ensuring long-lasting performance.
- Fits Ultra Max II 490 / 495 / 595 & GMAX II models
- Precision coiled design for superior tension retention
- Corrosion-resistant stainless steel construction
- Ideal for handle, frame, and pump assemblies
Detailed Overview of the Graco 108779 Straight Coiled Spring Pin
Compatible Machines
- Graco Ultra Max II 490 / 495 / 595 Airless Sprayers
- Graco GMAX II Series Sprayers
- Graco Contractor PC and ProContractor Cart Assemblies
- Graco Ultra 395 & 495 Stand Models
Product Description
Graco 108779 Straight Coiled Spring Pin is a precision-engineered component designed for high-pressure airless sprayer systems. This straight coiled pin offers reliable retention and smooth operation under extreme working conditions. It helps maintain stable pressure balance and ensures secure fitment in various Graco OEM assemblies.
- Precision-engineered coiled design ensures uniform tension and secure seating.
- Durable stainless steel alloy with a corrosion-resistant finish.
- Optimized for long service intervals and reduced maintenance downtime.
- Used in Graco fluid-handling, spray, and pump assemblies.
Technical Specifications
| Specification | Details |
|---|---|
| Material | 17-4 PH Stainless Steel Alloy (Plasma-Nitrided Surface) |
| Coil Diameter | 0.125 inch nominal |
| Dimensional Tolerance | ±0.001 inch |
| Fatigue Rating | Greater than 107 cycles at 80% maximum shear stress |
| Operating Temperature Range | -40°C to 120°C |
Performance and Reliability
The Graco 108779 Pin undergoes rigorous quality testing including ultrasonic inspection, fatigue analysis, and corrosion testing per ASTM B117 standards. It demonstrates superior pressure stability and minimal compression set, ensuring dependable operation over millions of cycles. Its smooth, electropolished surface reduces friction, enhances load distribution, and prevents wear in tight assemblies.
Maintenance and Installation Tips
- Apply light synthetic grease during installation to minimize friction.
- Ensure proper alignment when inserting into guide bores or handles.
- Inspect periodically for wear, corrosion, or fatigue cracks.
- Replace during scheduled maintenance to maintain optimal system performance.
Price
$9.69 USD
Frequently Asked Questions
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