The Multiquip 753430016-01 -01 is a genuine OEM Lock Washer M16 designed for ST4, ST6, ST41230, ST41460, ST61230, and ST61460 series submersible pumps. As a direct OEM replacement, this fastening component is sourced to the same specifications as the original hardware used in production, ensuring correct seating and holding force when reassembling pump components. Keeping the right hardware on hand matters — a loose or missing lock washer can compromise fastener tension and lead to leaks or structural loosening under pump vibration.
Key Features
- Genuine OEM Hardware Spec: — Manufactured to the exact M16 thread class and hardness grade specified for Multiquip submersible pump assemblies, so clamping load is consistent with original build tolerances.
- Drop-In Hardware Match: — Sized to seat directly on M16 fasteners used in ST-series pump construction with no fitting or modification needed during reassembly.
- Broad ST-Series Compatibility: — Confirmed fit for ST4, ST6, ST41230, ST41460, ST61230, and ST61460 submersible pump models.
- Vibration Resistance: — Lock washer geometry bites into mating surfaces to resist fastener back-off caused by the continuous vibration generated during pump operation.
- Seal Integrity Support: — Proper fastener preload maintained by this washer helps keep housing joints and cover plates seated correctly, reducing the risk of water ingress or seal displacement in submerged conditions.
A lock washer is a hardened fastening component that sits beneath a nut or bolt head to prevent the fastener from loosening over time. In submersible pump assemblies, where continuous vibration and water pressure create constant mechanical stress on every joint, maintaining correct fastener tension is critical. When a lock washer deforms, corrodes, or goes missing entirely, fasteners can back off gradually, allowing housing covers or port connections to shift and permitting leaks that reduce pump efficiency or cause premature failure.
DHS Equipment is an authorized Multiquip parts dealer. If you need help confirming fitment for your specific pump model, contact our parts team directly.
Part Details
| Part Number | 753430016-01 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Lock Washer M16 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Submersible Pumps | ST6 |
| Submersible Pumps | ST4 |
| Submersible Pumps | ST41230/ST41460 |
| Submersible Pumps | ST61230/ST61460 |
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.
