The Multiquip 3055016 is a genuine OEM Socket Set Screw 5/16"-18x5/16" designed for MQ-D305 and D306 diaphragm pumps. As a factory-sourced fastener, it meets the exact thread specification and dimensional tolerance required by Multiquip for these pump models. Sourcing the correct set screw ensures the assembly stays secure under the vibration and load cycles typical of diaphragm pump operation. DHS Equipment stocks this part to keep your MQ diaphragm pump running without compromise.
Key Features
- Exact Thread Specification: — Cut to a 5/16"-18 thread pitch and 5/16" length, matching the OEM fastener spec precisely so the screw seats and locks without stripping or over-tightening.
- Genuine OEM Fastener: — Sourced directly from Multiquip, this set screw is manufactured to the same material grade and hardness as the original, maintaining clamping integrity over repeated service cycles.
- Direct Pump Compatibility: — Confirmed fitment for Multiquip MQ-D305 and D306 diaphragm pump models; verify part number 3055016 against your service manual before installation.
- Secure Assembly Under Load: — A properly torqued set screw prevents component shift and misalignment inside the pump assembly, protecting surrounding parts from accelerated wear caused by loosening fasteners.
- Drop-In Service Replacement: — Installs using a standard hex key with no modification to the housing or mating components, making it a straightforward field or shop replacement.
A socket set screw is a headless fastener that threads fully into a tapped hole and uses a hex socket drive for installation. In diaphragm pump assemblies, set screws are used to lock components — such as collars, hubs, or adjustment fittings — in position against a shaft or bore. When a set screw loosens or fails, the secured component can shift during operation, leading to misalignment, accelerated wear, or pump performance loss. Replacing a worn or damaged set screw with the correct OEM part restores the clamping force needed to keep the assembly properly positioned.
Part Details
| Part Number | 3055016 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Socket Set Screw 5/16"-18x5/16" Long |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Diaphragm Pumps | MQ-D305 |
| MQ Diaphragm Pumps | D306 |
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.
