Multiquip EM402986 Square Washer 1 In

The Multiquip EM402986 Square Washer 1 In is a genuine OEM replacement designed for MG30T2D, MG30M2D, MG30T3D, MG30M3D, and MG30 series equipment. As a direct OEM component, EM402986 is manufactured to the exact dimensions and material specifications of the original part, ensuring a proper seating surface and correct load distribution across fastened joints. This washer is sourced directly through Multiquip's authorized parts network, so you can trust it delivers the same fit and function as the hardware it replaces.

Key Features

• Genuine OEM Construction — Manufactured to the exact thickness, hole diameter, and bearing surface area of the original hardware used on MG30 series machines.
• Direct Drop-In Replacement — Seats flush against fastened surfaces without adjustment, matching the original bolt pattern and load-bearing geometry.
• Broad MG30 Series Compatibility — Confirmed fitment across MG30T2D, MG30M2D, MG30T3D, MG30M3D, and MG30 models.
• Even Load Distribution — The square profile spreads clamping force over a wider surface area than a standard round washer, helping to prevent fastener pull-through and joint loosening under vibration.
• Corrosion-Resistant Material Grade — Built to withstand the wet, abrasive environments common to fireproofing pump and mixer applications, maintaining holding strength over repeated use cycles.

A square washer serves as a bearing surface placed beneath a bolt head or nut to distribute clamping load evenly across a joint. Its wider, flat profile reduces the risk of the fastener pulling through or deforming the mating surface — particularly important on equipment subject to continuous vibration, such as pumps and mixers. When a washer is worn, deformed, or missing, fastener clamp load becomes uneven, which can lead to loosened connections, accelerated wear on surrounding hardware, and potential structural failure at that joint.

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.