Wacker Neuson 5000401127 Conical Spring Washer M20

The Wacker Neuson Conical Spring Washer M20 is a genuine OEM component designed for BFS and MFS series floor saws, including the BFS12, BFS1214, BFSX1214, MFS12, MFS14, and MFSX14 models. As a direct Wacker Neuson OEM part, the is manufactured to the exact material and dimensional specification of the original, ensuring consistent clamping performance at the M20 fastener position. Sourced directly through authorized Wacker Neuson supply channels, this washer carries full OEM provenance so you can fit it with confidence. Cross-reference part number against your machine's serial tag before ordering to confirm the correct application.

Key Features

• Correct Conical Profile for M20 Fasteners — Matched spring angle and load rating specific to the M20 mounting position, delivering the correct preload without guesswork.
• Genuine OEM Material Grade — Manufactured from the same hardened spring steel specification as the original, maintaining the compression and resilience required for high-vibration floor saw applications.
• Direct-Swap Installation — Identical outer diameter, inner bore, and cone geometry to the original washer means it seats properly the first time without modification.
• Broad Floor Saw Compatibility — Fits BFS12, BFS1214, BFSX1214, MFS12, MFS14, and MFSX14 series floor saws across multiple Wacker Neuson model configurations.
• Sustained Clamping Force Under Load — A correctly functioning conical spring washer maintains bolt tension through vibration and thermal cycling; a worn or flattened washer allows fasteners to back off, causing misalignment and potential structural damage.

A conical spring washer — sometimes called a Belleville washer — is a disc-shaped fastener component with a slightly domed profile that acts like a spring when compressed under a bolt or nut. In floor saws, where blade assemblies and drive components generate sustained vibration, these washers maintain consistent clamping force by compensating for any micro-movement or thermal expansion that would otherwise cause a fastener to loosen over time. When a conical spring washer flattens out or cracks from fatigue, the fastener it secures can work loose, leading to blade wobble, component wear, or more serious mechanical failure during cutting operations.

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.