Graco 103781 Wave Washer
$7.65
Out of Stock
The Graco 103781 Wave Washer provides spring tension and maintains axial preload in various Graco sprayer assemblies. It ensures smooth mechanical operation and reduces vibration.
- OEM Part Number: 103781
- Part Type: Wave Washer (spring type)
- Used In: Ultra Max II 695, 795, 1095, 1595 & Mark V HD (verify per manual)
- Function: Maintains component tension and stability
This product has been discontinued by the manufacturer.
Genuine OEM Part
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Overview & Key Details — Graco 103781 Wave Washer
Compatible Machines
- Used in select Ultra Max II series (e.g., 695 / 795 / 1095 / 1595) — model & generation dependent; verify in parts list.
- Appears on various Graco airless sprayers as a spring washer for axial preload — location and quantity vary by assembly.
What is the 103781 Wave Washer?
The Graco 103781 Wave Washer is a spring-type washer with a wavy profile. In Graco assemblies it’s used to apply controlled axial preload, take up tolerance stack, and dampen vibration, helping maintain consistent fit and function over time.
Technical Details
| Part Number | 103781 |
|---|---|
| Part Type | Washer, Wave (spring washer for axial preload) |
| Typical Location | Drive / bearing interfaces or stack-ups where preload is needed (varies by model) |
| Role in Assembly | Maintains tension, compensates wear/thermal growth, reduces noise and vibration |
| OEM Status | Genuine Graco replacement part |
Fitment Guidance
- Match by model, series/generation, and exploded diagram reference for your sprayer.
- Some models use multiple wave/flat/thrust washers in a stack; ensure you’re ordering the exact wave washer (103781).
- If your manual lists alternates for specific serial ranges, follow the document’s “used on” notes.
Frequently Asked Questions
It provides axial spring force to keep components preloaded, minimizing play and vibration. This helps maintain smooth operation and consistent alignment within the assembly.
Open your model’s Instructions/Parts List (exploded diagram) and search for “103781” or “Washer, Wave.” Confirm the reference number, location, and quantity for your specific model and serial range.
Yes — Graco 103781 is listed by Graco distributors as an OEM “Washer, Wave.” Always match the part by number to avoid non-equivalent substitutes.
Substitutions are risky because thickness, free height, and spring rate affect preload. Use 103781 or a Graco-specified alternative in your manual to maintain correct stack height and performance.
Depending on the model, a wave washer may sit under a bearing, within a drive or clutch stack, or adjacent to a shaft/hub to maintain axial tension. The exact placement is shown in your sprayer’s parts diagram.
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