Graco 116416 – Plain Washer
Overview
The Graco 116416 Plain Washer is a flat, circular washer designed to distribute the load of bolts, nuts or screws and provide a stable bearing surface in sprayer, pump, or fluid‑handling assemblies. It helps protect components and surfaces from damage or deformation when fasteners are tightened — ensuring secure, durable connections in Graco equipment. ([official listing])
Key Features & Properties
- Original Graco part number: 116416 — genuine flat washer from Graco’s spare‑parts catalog. :contentReference[oaicite:3]{index=3}
- Flat “plain washer” design — simple ring‑shaped washer with central hole for bolt or screw shaft. :contentReference[oaicite:4]{index=4}
- Used to evenly distribute fastening load and protect surface/contact area under bolt/nut head or mounting plate. :contentReference[oaicite:5]{index=5}
- Commonly used in general‑purpose fastening, mounting brackets, pump housings, frames or covers — wherever a stable, flush joining surface is needed. :contentReference[oaicite:6]{index=6}
Compatible Machines
No publicly available comprehensive list of all specific Graco models using part 116416.
Because 116416 is a generic washer, it may be used in multiple Graco sprayers, pumps, or fluid systems. To verify whether it fits your system, check your machine’s parts diagram or manual and match the washer’s size to the fastener and assembly where it’s needed.
Why Use This Plain Washer?
This washer is useful when you need to:
- Ensure even load distribution under bolt/nut or fastener head — reducing risk of surface damage or stress concentration
- Protect equipment surfaces from deformation when fasteners are tightened
- Maintain secure, stable connections — especially in assemblies subjected to vibration, pressure or repeated use
- Use a genuine OEM‑grade part to maintain reliability and compatibility in Graco equipment
Frequently Asked Questions
A “plain washer” is a flat ring that sits between a fastener (bolt, screw or nut) and the surface being clamped. It helps spread / distribute the clamp load over a larger area, protecting the surface and preventing the fastener head or nut from digging into or damaging the material. :contentReference[oaicite:7]{index=7}
Yes — 116416 appears in authorized Graco spare‑parts catalogues as “WASHER, PLAIN”. :contentReference[oaicite:8]{index=8}
Replace the washer if it shows signs of deformation, corrosion, wear, or if fasteners are loosening — because a worn or damaged washer may not distribute load properly, risking damage to components or loosening of the fastening under vibration or pressure.
