Graco 115623 Belleville Washer
$12.20
Out of Stock
The Graco 115623 Belleville Washer is a conical spring‑washer that keeps joints tight under vibration or fluid pressure — preventing bolts loosening and ensuring stable spray/pump operation.
- Conical disc‑spring washer (OEM‑grade)
- Maintains bolt preload under pressure, vibration or thermal cycling
- Better than flat washers for high‑load & dynamic applications
This product has been discontinued by the manufacturer.
Genuine OEM Part
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Compatible Applications for Graco 115623 Belleville Washer
The Graco 115623 Belleville Washer is a factory-specified disc-spring washer (conical spring washer) designed to maintain bolt preload and resist loosening under pressure, vibration, or thermal cycling — ensuring secure joints and reliable performance in spray and pump systems.
- Graco pumps and sprayer assemblies where bolts/joints face fluid-pressure or vibration loads
- Bolted connections in fluid-handling, airless spray, or coating equipment requiring vibration and thermal stability
- Any Graco module specifying 115623 washer in parts-diagram to maintain secure fastening under dynamic loads
Frequently Asked Questions
Because a Belleville washer acts like a spring-washer: under load it maintains tension, compensates for thermal expansion or vibration, and prevents bolts from loosening — something a flat washer cannot do as effectively.
Yes — disc-springs like Belleville washers can be stacked in series or parallel to modify spring-rate, preload and deflection-characteristics depending on load and application requirements.
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