Wacker Neuson 5000163756 Washer 5/16 Lock Split

The Wacker Neuson is a genuine OEM Washer 5/16 Lock Split designed for the BFS 2020AS and BFS 1318AS floor saws. Sourced directly from Wacker Neuson, this split lock washer delivers the exact material grade and tension spec required by the original assembly. It is confirmed compatible with the BFS 2020AS and the BFS 1318AS self-propelled walk-behind saws, making it a straightforward drop-in service part for scheduled maintenance or fastener replacement. When you need to restore a properly torqued joint on your floor saw, part is the correct choice.

Key Features

• Genuine OEM Tension Integrity — Manufactured to the original spring-hardness and split-angle specification, ensuring the washer bites and holds under the vibration loads typical of floor saw operation.
• Direct-Fit Hardware — Sized at 5/16 inch to seat flush against mating fasteners in the BFS assembly with no reworking of the bolt pattern or hardware.
• Confirmed BFS Compatibility — Verified fitment for the BFS 2020AS and BFS 1318AS walk-behind floor saws, covering both self-propelled and standard configurations in this series.
• Vibration Resistance Where It Counts — A split lock washer that has lost tension allows fasteners to back out during cutting cycles, which can affect blade alignment and cut quality; replacing it restores secure clamping force.
• Fastener Safety Compliance — In blade-adjacent and drivetrain fastener locations on a floor saw, a correctly functioning lock washer is a critical element in preventing unintended fastener loosening during operation.

A split lock washer works by using its open, helical shape to bite into the underside of a fastener head and the mating surface when the joint is torqued down. This mechanical bite resists rotation and prevents the bolt or nut from backing off under vibration and cyclical load — both of which are constant conditions in a running floor saw. When a split lock washer flattens out or loses its spring tension, it no longer provides that resistance, and the fastener can work loose over time, compromising the integrity of the assembly it secures.

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.