The Multiquip EM505728 Hex Nut 1 In. NC is a genuine OEM fastener designed for Mayco hydraulic-driven concrete pump models including LS300, LS400, LS500, LS600, LS60TD, LS40D, LS40TD, and LS50TD. Sourced directly from Multiquip, this fastener meets the exact material and thread specification required for these machines. Using the correct OEM hardware ensures proper clamping force and joint integrity across the pump's critical assemblies. DHS Equipment stocks EM505728 so you can get your concrete pump back in service without delays.
Key Features
- OEM-Grade Fastener Material — Manufactured to the same hardness and thread tolerance as the original hardware, ensuring consistent torque performance without stripping or galling.
- National Coarse (NC) Thread Profile — The 1 in. NC thread pattern seats and engages exactly as the factory design requires, eliminating the risk of mismatched threading during reassembly.
- Broad LS Series Compatibility — Confirmed fit across LS300, LS400, LS500, LS600, LS60TD, LS40D, LS40TD, and LS50TD Mayco concrete pump models.
- Structural Joint Integrity — A properly torqued, correctly spec'd hex nut maintains the clamping load that keeps pump components secure under the vibration and pressure cycles of concrete pumping operations.
- Direct OEM Replacement — Part number EM505728 cross-references directly to the original application, so there is no guesswork when ordering or installing.
A hex nut is a threaded fastener used to clamp two or more components together when paired with a bolt or stud. On hydraulic-driven concrete pumps like the Mayco LS series, fasteners throughout the frame, hopper, and hydraulic assembly must maintain precise clamping loads to handle the stresses of continuous pumping cycles. A worn, stripped, or incorrectly sized nut can lead to joint loosening, component misalignment, or mechanical failure during operation — making it important to replace with the correct OEM specification hardware rather than a generic substitute.
Part Details
| Part Number | EM505728 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hex Nut 1 In. NC |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS300 |
| Mayco Pumps | LS400 |
| Mayco Pumps | LS500 |
| Mayco Pumps | LS600 |
| Mayco Pumps | LS60TD |
| Mayco Pumps | LS40D |
| Mayco Pumps | LS40TD |
| Mayco Pumps | LS50TD |
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.
