The Multiquip 2750343004 is a genuine OEM Lock Washer M5 3/16 designed for ST1 and ST1F submersible pump models. As a factory-sourced component, this washer meets the exact material and dimensional standards set during original production, ensuring it seats and torques correctly in the application. It is a direct match for ST1 and ST1F units, so there is no guesswork on compatibility when ordering by part number. DHS Equipment supplies this as an authorized Multiquip OEM part, giving you confidence that you are receiving the correct component for your machine.
Key Features
- Genuine OEM Material Grade — Manufactured to the same hardness and spring-back specification as the original, ensuring proper locking tension under load.
- M5 Thread Compatibility — Sized specifically for M5 fasteners, seating flush and locking securely without shimming or adaptation.
- Confirmed Fitment — Verified for Multiquip ST1 and ST1F submersible pump models; match your unit before ordering.
- Prevents Fastener Loosening — A correctly functioning lock washer maintains clamping force under vibration, protecting pump assembly integrity over continuous operation.
- Direct OEM Replacement — Sourced from Multiquip's authorized parts supply, this component matches the original part specification number-for-number.
A lock washer is a small but critical hardware component placed beneath a fastener to resist loosening caused by vibration and dynamic load. In submersible pump applications, where the motor and impeller generate continuous rotational forces in a wet environment, fasteners that are not properly secured can back out and lead to assembly failures or water ingress at sealed joints. Using the correct M5 lock washer — one that matches the original bite angle and temper — ensures the fastener maintains its clamp load throughout the pump's service life. When this washer is worn flat, corroded, or missing, the fastener it secures becomes vulnerable to backing off under normal operating conditions.
Part Details
| Part Number | 2750343004 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Lock Washer M5 3/16 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Submersible Pumps | ST1 |
| Submersible Pumps | ST1F |
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.
