Wacker Neuson 5000163748 Lock Washer 7/16 Split

The Wacker Neuson Lock Washer 7/16 Split is a genuine OEM fastener component designed for the BFS 2020AS and BFS 1318AS walk-behind floor saws. Sourced directly from Wacker Neuson, this split-type lock washer delivers the exact dimensional and material specification required for a secure, vibration-resistant connection on these machines. Confirm your model number before ordering — the is listed across both the BFS 2020AS and BFS 1318AS saw platforms, making it a common service part for this floor saw family.

Key Features

• Genuine OEM Fastener Integrity — Manufactured to Wacker Neuson's exact split-ring profile and hardness spec, ensuring the washer bites and holds torque the way the original fastener was engineered to.
• Split-Ring Locking Action — The split design creates spring tension under the fastener head, resisting loosening caused by the sustained vibration typical of walk-behind floor saw operation.
• Direct-Fit for BFS Floor Saws — Confirmed fitment for the BFS 2020AS and BFS 1318AS; drops into place on the correct fastener position with no reworking of surrounding hardware.
• Vibration-Environment Rated — Floor saws generate significant blade-driven vibration through every cut; a correctly functioning lock washer keeps critical fastener joints from backing out over extended use.
• Low-Cost Preventive Service Item — Replacing a worn or fatigued lock washer at every major service interval protects far more expensive adjacent hardware from loosening damage.

A split lock washer is a deceptively simple but functionally critical fastener component. It sits between a bolt or nut and the mating surface, and its split, slightly bowed profile acts as a spring — when the fastener is torqued down, the washer flattens and pushes back, creating friction that resists rotational loosening. On a machine like a walk-behind floor saw, where blade contact with concrete or asphalt generates constant vibration, any fastener joint that loses its lock washer is at risk of gradually backing out. A failed or missing lock washer can lead to loose assemblies, misalignment, or accelerated wear on surrounding components — issues that are far more disruptive to address than a simple washer replacement during routine service.

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.