Graco 164416 Flat Washer
$48.10
In Stock
The Graco 164416 Flat Washer ensures secure assembly and even load distribution in pump hardware. Commonly used in Graco Hydra-Cat proportioning pumps for reliable performance and durability.
- Part Number: 164416
- Type: Flat Washer (Plain)
- Fits: Graco / King Hydra-Cat FR Pumps – Models 231666, 231667, 231668
- Typical Size: 1/2 inch hardware
- Purpose: Distributes bolt/nut load and protects contact surfaces
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Genuine OEM Part
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Part Overview & Verified Fitment
Compatible Machines
The Graco 164416 Washer is confirmed in Graco documentation for the following assemblies.
- Graco / King Hydra-Cat FR Proportioning Pumps — Model 231666, Model 231667, Model 231668 (three-pump assemblies)
Quick Specs
| Attribute | Detail |
|---|---|
| Part Number | 164416 |
| Description | Washer, Flat (plain washer) |
| Typical Size Context | Referenced in Graco listings as a 1/2 in flat washer within the Hydra-Cat pump assembly area. |
| Function | Distributes load under a bolt/nut, protects surfaces, and maintains spacing in assemblies. |
| Common Assembly Area | Hydra-Cat pump linkage/tie-plate related hardware (per documented parts lists). |
Product Details
The Graco 164416 flat washer is used where a durable, consistent bearing surface is required around fasteners. In the cited Hydra-Cat proportioning pump assemblies, it helps distribute clamping force and reduce wear, supporting reliable, repeatable torque.
Frequently Asked Questions
No. 164416 is a flat washer (plain washer). Lock washers are designed to resist loosening; this part provides a flat bearing surface for load distribution.
In documented Hydra-Cat assemblies, 164416 is referenced alongside 1/2 in hardware. Always verify sizing in your specific machine manual before ordering.
Use of non-OEM hardware can affect fit and long-term reliability. If substituting, ensure equal inner diameter, outer diameter, thickness, and material quality that match Graco specifications.
Check the official parts breakdown for your exact model. If 164416 is listed, it’s compatible. If not, contact support with your model and serial for a cross-check.
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