Multiquip 753430010-01 Lock Washer M10

The Multiquip 753430010-01 -01 is a genuine OEM Lock Washer M10 designed for Multiquip submersible pump models ST4, ST6, ST41230, ST41460, ST61230, and ST61460. As a factory-sourced component, it delivers the exact fit and material specification Multiquip engineers built into these pumps. Whether you are completing scheduled maintenance or replacing hardware lost during a service interval, -01 ensures every fastened connection on your submersible pump is held to the correct torque without backing off under vibration or load.

Key Features

• Genuine OEM Hardware Grade — Manufactured to Multiquip's exact hardness and dimensional spec for M10 fastener applications, so the washer bites and holds the way the original design intended.
• Drop-In Hardware Replacement — Matches the original M10 lock washer profile exactly, seating against the mating surface with no filing, grinding, or shimming required.
• Broad Submersible Pump Compatibility — Confirmed fitment across ST4, ST6, ST41230, ST41460, ST61230, and ST61460 submersible pump models, covering both single-phase and dual-voltage configurations.
• Vibration-Resistant Locking Action — The hardened split-ring design bites into the fastener and mating surface to resist loosening caused by pump motor vibration during continuous submerged operation.
• Corrosion-Appropriate Construction — Built to withstand the wet, submerged service environment these pumps operate in, maintaining clamp load integrity over extended pump run cycles.

A lock washer is a small but critical piece of hardware used beneath a bolt or nut to prevent the fastener from loosening due to vibration or dynamic loading. In submersible pump applications, the constant motor vibration and water pressure fluctuations can work a standard fastener loose over time, leading to misaligned components, leaks at sealed joints, or structural failure of an assembly. Using the correct OEM-spec lock washer, like the Multiquip 753430010-01, ensures the fastener maintains its clamping force throughout the pump's service life, keeping critical connections tight and the pump operating as intended.

Verify your model number before ordering. For fitment questions or parts support, contact DHS Equipment directly.

Part Details

Compatibility & Fitment

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.