Where the Graco 109570 Washer (Plain) Fits & What It Does
Compatible Machines / Assemblies
The Graco 109570 Washer, Plain is a standard OEM flat washer that appears across multiple Graco assemblies. It is commonly found in the following equipment families and kits (verify against your model’s parts manual and serial range):
- Ultra Max & related professional airless sprayers (e.g., Ultra Max 695 series)
- GrindLazer surface preparation equipment (various models)
- Skid-Mount / OEM striping packages and road-marking setups
- Selected Bead Tank / material tank kits and hardware packs
- Other Graco brackets, guards, frames, and linkages where a flat washer is specified
Tip: If your manual calls out “Washer, Plain – 109570”, this part is the correct OEM replacement.
Overview
The Graco 109570 is a genuine Graco plain (flat) washer used to distribute clamping load, protect mating surfaces, and help maintain fastener torque in vibration-prone applications. Because it is standard hardware, it is used in many Graco machines and kits rather than a single dedicated model.
Key Benefits
- OEM fit & finish for reliable assembly and service work
- Load distribution to reduce galling and surface wear
- Versatile use across frames, guards, brackets, and linkage points
- Quick maintenance item—ideal to keep on hand with fasteners
Specifications
| Part Number | 109570 |
| Part Type | Washer, Plain (Flat Washer) |
| Brand / Origin | Genuine Graco OEM |
| Typical Use | General hardware in sprayers, stripers, surface prep units, and kit hardware packs |
| Cross-Reference | In some listings this washer is referenced alongside 17W098 (check your manual to confirm for your serial range). |
How to Confirm Fitment
- Open your machine’s parts manual and search for “Washer, Plain – 109570”.
- Match the exploded diagram index and quantity required at the noted fastener location.
- Check serial number breaks or revision notes (if shown) before ordering multiples.
Frequently Asked Questions
It is a general hardware washer used across many Graco machines. Check your parts manual for “Washer, Plain – 109570”. If listed, it’s the correct OEM replacement for that location.
Some catalogs reference 17W098 in related contexts. Always confirm in your model-specific manual or contact support before substituting hardware.
A plain (flat) washer spreads load under a bolt or nut, protects painted or soft surfaces, and helps maintain torque where vibration is present.
The quantity varies by assembly. The exploded view in your parts manual will show each location and the count required.
Ensure the washer sits flat under the fastener head or nut, match the ID/OD to the specified bolt size in the manual, and torque to the spec provided for that joint.
