The Multiquip F620025 Lock Washer 1/4 is a genuine OEM component designed for the SDP-2 STOW Diaphragm Pump. Sourced directly from Multiquip, this fastener hardware meets the exact material and dimensional specifications required for proper assembly on SDP-2 series equipment. Whether you are completing a repair or performing routine maintenance, using the correct OEM lock washer ensures every fastened joint holds to spec and stays secure under operating conditions.
Key Features
- Genuine OEM Material Grade — Manufactured to the same hardness and spring-tension spec as the original, ensuring the washer bites and holds without flattening prematurely under torque.
- Direct-Fit for SDP-2 Diaphragm Pumps — Sized at 1/4 inch to match the existing fastener layout on the SDP-2, dropping straight into place without any modification to hardware or mounting points.
- SDP-2 Compatibility Confirmed — Validated fitment for the STOW SDP-2 Diaphragm Pump series, so you can order with confidence knowing this is the correct part for your machine.
- Prevents Fastener Back-Out — Lock washers are a critical safeguard in high-vibration pump applications; a worn or missing washer allows fasteners to loosen, which can lead to leaks, misalignment, or component separation during operation.
A lock washer is a small but essential fastening component used throughout pump assemblies to prevent nuts and bolts from backing out due to vibration and cyclical loading. In a diaphragm pump like the SDP-2, constant pressure cycling and mechanical vibration place repeated stress on every threaded joint — without a properly functioning lock washer, fasteners can gradually loosen, compromising seals, housing integrity, and safe operation. Replacing worn or missing lock washers as part of any service interval is a simple step that protects the surrounding components and keeps the pump running as intended.
Part Details
| Part Number | F620025 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Lock Washer 1/4 |
Compatibility & Fitment
| Name | Model |
|---|---|
| STOW Diaphragm Pumps | SDP-2 |
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.
