Graco 100016 Lock Washer
$7.30
In Stock
The Graco 100016 Lock Washer is a small but essential hardware part that prevents bolts and screws from loosening under vibration—used across multiple Graco sprayer models for secure assembly.
- Part Number: 100016
- Type: Lock Washer (Fastener Hardware)
- Fits: ST, 295ST, GH733, RoadLazer, HydraMax 225 & many others
- Purpose: Keeps screws and panels tightly secured
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
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About Graco 100016 Lock Washer & Compatibility
Compatible Machines
The 100016 is a widely-used lock washer found across many Graco sprayers and finishing systems. Verified examples from OEM parts lists and supplier catalogs include:
- ST & 295ST Series airless sprayers
- GH733 (Hydra Sprayer family)
- RoadLazer systems 231571 / 231572
- Models 223-260, 223-261
- Model 224-626
- HydraMax 225
- Model 226970
- GH733 variant 230975
- Gas line & driver families: 231-133, 231-141, 231-149, 231-150, 231-151, 231-152, 231-159
- Models 231114, 231378
- Models 232900, 232901, 233797, 233815
- 1900 Zip-Spray 246649
- Series: 300, 350, 3900, 3540, 3050
- Wall-mounted units & many electrostatic airless systems (various)
What is the Graco 100016?
The Graco 100016 Lock Washer is a small fastening component used under a screw or nut to resist loosening from vibration and load. It helps maintain clamping force on housings, panels, and sub-assemblies in Graco sprayers and related equipment.
- Function: provides anti-vibration security and helps retain fastener preload
- Placement: under screw/bolt heads or nuts in housing and bracket assemblies
- Use cases: pump enclosures, control panels, frames, guards, and mounts
Key Details
| Part Number | 100016 |
|---|---|
| Item Type | Lock Washer (fastener hardware) |
| Typical Location | Under screw/bolt heads or nuts on housings, brackets, and panels |
| Compatibility Note | Used on many Graco models; verify on your machine’s parts list/exploded view |
| Sold As | Single piece (check your assembly count before ordering) |
How to Verify Fit on Your Machine
- Locate your sprayer’s exact model and serial on the nameplate.
- Open the official parts list/exploded diagram for your model.
- Look for washer items: confirm the line calling out 100016.
- Check quantity required (often more than one per assembly).
Frequently Asked Questions
Likely, but confirm on your model’s parts diagram. If the diagram lists 100016, you’re good. If not, check if a different washer size or style is specified for that position.
Quantities vary by assembly. Many housings use multiple screws—count the fasteners in your diagram and order extras to cover spares or future maintenance.
If dimensions and hardness match the original spec, a generic can work. For warranty and safety, use OEM-spec parts where possible and never upsize/undersize the washer ID/OD or thickness.
Fasteners that back out, panel vibration, rattling noises, or misaligned covers. Inspect and replace as needed to prevent further wear.
Clean mating surfaces, seat the washer flat under the head or nut, torque to spec, and re-check after initial run-time. Replace any damaged screws or threads before reassembly.
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