The Multiquip 363257 Flanged Nut 1 Inch UNF is a genuine OEM fastener designed for the LS-series hydraulic-driven concrete pumps, including the LS600, LS300, LS500, LS400, LS50TD, LS40TD, LS40D, and LS60TD. As a factory-sourced component, the 363257 is manufactured to the exact thread specification and flange geometry required by Multiquip Mayco concrete pump assemblies, ensuring a correct, secure fit wherever it is called out in the machine. Sourcing a genuine OEM fastener like this one eliminates the guesswork of matching thread pitch, flange diameter, and bearing surface — variables that matter when assemblies are torqued under load. DHS Equipment stocks this part to keep your concrete pump running without unplanned stops.
Key Features
- Exact Thread Specification: — Cut to 1 Inch UNF (Unified National Fine) thread standard, delivering the correct engagement depth and clamping load required by the LS-series pump assembly.
- Integrated Flange Design: — The built-in flange distributes clamping force across a wider bearing surface, resisting loosening under the vibration loads common in concrete pump operation.
- Genuine OEM Sourcing: — Produced to Multiquip's own material and dimensional specification, so the 363257 matches the original hardware without rework or shimming at installation.
- Broad LS-Series Compatibility: — Confirmed fitment across LS600, LS300, LS500, LS400, LS50TD, LS40TD, LS40D, and LS60TD Mayco concrete pump models.
- Structural Integrity Under Load: — A correctly torqued flanged nut maintains critical joint tension in high-pressure hydraulic and mechanical assemblies; a worn or incorrect fastener risks joint separation and pump failure.
A flanged nut combines a standard hex nut with an integrated circular flange that acts as a built-in washer. This flange spreads the clamping load over a larger surface area, which reduces the risk of fastener pull-through and helps the joint resist vibration-induced loosening — both important factors in the high-cycle, high-pressure environment of a hydraulic-driven concrete pump. When a flanged nut is damaged, stripped, or replaced with an incorrect fastener, joint integrity is compromised, which can lead to loosening of critical assemblies, fluid leaks, or structural failure at the connection point.
Part Details
| Part Number | 363257 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Flanged Nut 1 Inch UNF |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS600 |
| Mayco Pumps | LS300 |
| Mayco Pumps | LS50TD |
| Mayco Pumps | LS40TD |
| Mayco Pumps | LS500 |
| Mayco Pumps | LS400 |
| Mayco Pumps | LS40D |
| Mayco Pumps | LS60TD |
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.
