Overview & Compatibility — Graco 100527 Plain Washer
Compatible Machines
This genuine OEM washer appears in parts lists for the following Graco sprayers and assemblies (verify with your machine’s parts diagram):
- Graco GH130 Hydraulic Sprayer
- Graco GH200 Hydraulic Sprayer
- Graco GH230 Hydraulic Sprayer
- Graco GH300 Hydraulic Sprayer
- Graco Circulation Package / Kit assemblies (e.g., circulation kits listing this washer)
What is the Graco 100527 Plain Washer?
The Graco 100527 Plain Washer is a flat washer used to distribute fastener load, protect surfaces, and help maintain correct clamping force in Graco sprayer and fluid-handling assemblies. Using the specified OEM washer helps preserve fit, torque, and long-term reliability.
Quick Specs
| Part Number | 100527 |
| Type | Plain (Flat) Washer |
| Inner Diameter (ID) | 0.312 in (approx.) as listed in Graco kit parts tables |
| Typical Usage | Fastener load distribution in Graco hydraulic sprayers and circulation packages |
| Replaces / Also Called | Plain washer, flat washer (OEM spec) |
Why choose the OEM washer?
- Correct fit & thickness for specified fasteners and housings
- Consistent clamping force to help prevent loosening and wear
- Protects mating surfaces under bolts/nuts
Fitment Notes
- Match the washer to the part number 100527 shown in your model’s parts diagram.
- Replace any washers that are bent, cracked, corroded, or visibly deformed.
- Tighten to torque values specified in your equipment manual.
Frequently Asked Questions
It fits models where the official parts diagram lists 100527. Common families include GH130, GH200, GH230, GH300, and certain Circulation Package assemblies. Always confirm against your unit’s parts list.
Parts tables list an inner diameter of approximately 0.312 in for 100527 within relevant kits. Verify sizing for your specific fastener and location.
A generic washer may appear similar, but material, thickness, and tolerances can differ. For best results and to maintain performance, use the OEM Graco 100527 where specified.
Quantity depends on the assembly. Some kits list multiple pieces (e.g., sets of four). Check your model’s parts list for the exact count and placement.
Locations vary by model—it’s commonly used under bolt heads or nuts in pump, frame, or filtration/manifold subassemblies. Refer to the exploded diagram for your exact unit.
