Graco 104034 Plain Washer
$6.75
In Stock
Genuine Graco 104034 Plain Washer — flat washer used to distribute clamp load and protect surfaces in select Graco assemblies. Verify by part number in your model’s parts list.
- Part No.: 104034 (Plain Washer)
- Commonly referenced as 5/16" flat washer in Graco diagrams
- Used in PrecisionMix / Gun Flush Box modules and select ThermoLazer/ProMelt units
- Match the exact part number in your machine’s exploded view before ordering
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Genuine OEM Part
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Specifications, Fitment Notes & FAQs for Graco 104034 Plain Washer
The Graco 104034 Plain Washer is a flat washer used across various Graco assemblies to distribute clamp load and protect mounting surfaces. Use this listing to verify fitment against your machine’s parts manual before ordering.
Compatible Machines
- Selected ThermoLazer / ProMelt traffic-marking units (where 5/16" plain washer is specified)
- PrecisionMix / Gun Flush Box module assemblies (as listed in related Graco parts diagrams)
- Other Graco industrial spray assemblies that specify a 5/16" plain washer by part no. 104034
Used In Assemblies / Modules
| Assembly / System | Reference (Example Manual/Item) | Notes |
|---|---|---|
| Gun Flush Box Module (PrecisionMix) | Graco parts list (example listing for “washer, plain, 5/16”) | Appears as a flat washer used in the module hardware stack-up. Verify item callout against your module revision. |
| ThermoLazer / ProMelt Line Striping Systems | ThermoLazer parts manuals (selected models) | Listed as a plain washer in multiple hardware locations. Check the exact diagram for your TL series model. |
Key Specifications
| Part Number | 104034 |
|---|---|
| Description | Plain Washer, flat type for general hardware load distribution |
| Nominal Size | 5/16" (as commonly referenced in related Graco module diagrams) |
| Typical Use | Under bolt/nut heads to spread clamp load and protect painted or machined surfaces |
| Interchange | Use exact Graco part no. match. Do not substitute if your manual specifies 104034. |
Installation & Service Notes
- Inspect the mating surface; remove burrs and debris before reassembly.
- Replace washers that show deformation, corrosion, or galling.
- Tighten fasteners to the torque specified in your machine’s service manual.
- Confirm orientation when part of a stack (washer → lock washer → nut, if applicable).
Frequently Asked Questions
Verify the exact part number in your sprayer’s exploded parts list. If your manual calls out 104034 (Plain Washer), this listing is correct for that location and revision.
It is commonly referenced as a 5/16" flat washer used to distribute load and protect the mounting surface, helping maintain alignment and sealing of assemblies.
Clean the seating surface, replace damaged hardware, and torque to spec. If used with a lock washer, keep the order specified by the manual. Replace if deformed or corroded.
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