The Multiquip P3005 1/4" Lock Washer is a genuine OEM component designed for C30HDNI series concrete pumps. As an OEM part, it is manufactured to the exact material and dimensional standards specified for these machines, ensuring a secure, rattle-free fastening connection every time. This washer is confirmed to fit the C30HDNI and C30HDNI Precision Mayco concrete pump models. Ordering by part number P3005 ensures you receive the correct size and grade for your application.
Key Features
- OEM-Grade Material Hardness — Manufactured to the exact spring-steel grade and bite angle required for secure fastener retention on C30HDNI concrete pump assemblies.
- Drop-In Replacement — Matches the original 1/4" bore and split-ring profile, seating correctly against fastener heads and mating surfaces without modification.
- Confirmed Fitment — Compatible with C30HDNI and C30HDNI Precision Mayco concrete pumps; verified by Multiquip part number P3005.
- Prevents Fastener Loosening — The split-ring design bites into both the fastener and the mating surface under load, resisting vibration-induced loosening common in concrete pump operation.
- Fastener Integrity Under Vibration — Concrete pumps generate sustained mechanical vibration during operation; a worn or missing lock washer allows critical fasteners to back out, leading to component misalignment or failure.
A lock washer is a hardened split-ring fastener component that sits beneath a bolt or nut head to prevent loosening caused by vibration and dynamic loads. As the fastener is tightened, the washer's split ends compress and dig into both the fastener face and the mounting surface, creating resistance against rotational movement. On concrete pumps like the C30HDNI, where cyclic hydraulic pressure and mechanical vibration are constant, maintaining fastener torque is critical — a failed or missing lock washer can allow bolts to back out, compromising structural integrity and leading to more significant repairs.
For fitment questions or help confirming this part is right for your machine, contact the DHS Equipment team directly.
Part Details
| Part Number | P3005 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | 1/4" Lock Washer |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDNI |
| Mayco Pumps | C30HDNI Precision |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
