Graco 106115 Lock Spring Washer (Hi-Collar)

Maintain secure fastener connections with the Graco 106115 Hi‑Collar Lock Spring Washer, designed for high‑cycle spray system assemblies.

Compatible with Graco Ultra Max II 695 Hi‑Boy and Ultimate MX II 1095/1595
Hi-collar design provides superior grip and stability
Hardened steel construction with protective plating
Prevents loosening under vibration and cyclic loads
OEM quality for reliable long-term performance

$8.74

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Description

High‑Collar Lock Spring Washer 106115 for Graco Assemblies

Compatible Machines

Graco Ultra Max II 695 Hi‑Boy
Graco Ultimate MX II 1095 Electric Airless Sprayer
Graco Ultimate MX II 1595 Electric Airless Sprayer
Applicable to several GMAX / ProContractor series units using clutch/drive locking components

Product Overview

The Graco 106115 Lock Spring Washer (Hi‑Collar) is a specialized locking component engineered to retain critical internal fasteners under high‑vibration, high‑cycle spray‑equipment conditions. Its high‑collar design provides superior grip and resistance to loosening, ensuring maintenance‑free reliability in demanding spray systems.

Specifications

Height (Collar)	Approx. 0.25 in
Width / Length	Approx. 0.45 in × 0.45 in
Material	Hardened steel spring washer
Finish	Protective plating to resist corrosion
Function	Locking washer with high‑collar geometry to prevent fastener loosening

Design & Durability

This hi‑collar lock spring washer is built to stabilize fastening systems under intense cyclical loading. The elevated collar ensures increased surface engagement, enhanced contact with mating components and improved resistance to axial displacement and loosening due to vibration.

Performance in Spray Systems

Installed in critical clamp assemblies and drive housings of high‑output sprayers, this washer maintains preload, avoids fastener backlash and contributes to overall system integrity. Using the 106115 washer helps extend service intervals and supports consistent equipment performance.

Installation & Maintenance

Replace the washer any time the associated fastener is serviced or removed. Ensure the mating surface is clean and flat before installation. Torque the fastener to the specification recommended by the equipment manual, and verify that the collar seats fully. Inspect at regular service intervals for wear or deformation—replace if the collar is flattened or lost its spring‑action.

Quality Assurance

Manufactured under stringent production controls, each washer undergoes dimensional verification, hardness testing and corrosion screening. Compatibility with Graco’s high‑cycle spray systems ensures OEM‑level performance and fit.

Frequently Asked Questions

The “hi‑collar” describes the raised flange around the washer’s center hole, which increases surface contact and helps stabilize the fastener assembly under vibration and axial movement.

It is recommended to replace the washer whenever the fastener is removed since the spring action and collar geometry may be compromised and cannot reliably restore original preload.

Inspect the washer for signs of collar flattening, loss of spring tension, corrosion or cracking. If any of these are present, replacement is advised to maintain lock integrity.