Multiquip ZT130A10 Split Lock Washer 5/16

The Multiquip ZT130A10 Split Lock Washer 5/16 is a genuine OEM component designed for the BP-25H gasoline backpack flex-shaft vibrator. As a factory-sourced fastener component, it ensures correct clamping force and resistance to loosening under the sustained vibration loads that backpack concrete vibrators produce during operation. Sourced directly through Multiquip's OEM parts program, the ZT130A10 matches the exact specification called out in the original assembly.

Key Features

• Genuine OEM Hardness and Temper: — Manufactured to the same material grade as the original, so the washer bites correctly against fastener and mating surface without cracking or deforming under torque.
• Vibration-Resistant Locking Action: — The split profile creates spring tension that resists bolt back-out under the constant high-frequency vibration generated by backpack vibrator operation.
• Drop-In Replacement: — Sized at 5/16 to seat directly onto existing hardware without adjustment, fitting the same bolt positions as the original fastener stack.
• Correct Fitment for BP-25H: — Confirmed for the Multiquip BP-25H gasoline backpack flex-shaft vibrator, so you can order with confidence against your machine's parts diagram.
• Maintains Fastener Integrity Over Time: — A worn or missing split lock washer allows critical fasteners to work loose during use, leading to component misalignment or premature wear on surrounding hardware.

A split lock washer is a hardened fastener component placed beneath a bolt or nut to prevent self-loosening caused by vibration and dynamic loads. The open split in the washer acts as a spring, maintaining tension in the fastener joint even as the assembly flexes and vibrates during operation. When a split lock washer is worn flat, missing, or substituted with an incorrect size, fasteners can gradually back out, causing loose assemblies, component damage, and potential operational failures in equipment like backpack concrete vibrators where vibration is constant and intense.

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.