Washer (Part No. 520000727)
Product Name: Washer (Part No. 520000727)
Description:
This component is a flat washer, a thin, ring-shaped fastener component used in mechanical assemblies. It serves as a spacer, a load distributor, or a friction reducer. Typically made from steel, stainless steel, or copper, it helps to prevent damage to the surface of a component when a nut or bolt is tightened .
Applications:
Load Distribution: Placed under a bolt head or nut to spread the clamping load over a larger surface area, preventing the fastener from embedding into softer materials.
Spacing: Used to adjust the axial position or take up slack between mating parts.
Surface Protection: Acts as a sacrificial barrier between the fastener and the component surface to prevent scratching or galling.
Sealing Support (Backup): In high-pressure systems, washers are often used as "backup rings" behind O-rings to prevent extrusion under extreme pressure.
Features:
Precision Dimensions: Manufactured with specific inner diameter (ID), outer diameter (OD), and thickness to meet mechanical tolerances.
Material Strength: Constructed from durable materials (often hardened steel or stainless steel) to withstand high clamping forces without deforming or flattening significantly .
Flat Parallel Surfaces: Precision ground or stamped to ensure uniform thickness and parallel faces for even load distribution.
Maintenance:
Inspection: Washers are typically single-use or consumable items. If a washer shows signs of deformation, cracking, wear, or crushing, it must be replaced.
Corrosion Check: Inspect for rust or corrosion, especially in the humid waterjet environment, which can compromise the washer's thickness and clamping force.
Re-use Policy: It is standard practice to replace washers whenever the associated fastener is removed, unless the specific washer is designed for multiple uses (e.g., thick hardened washers).
Handling: Always ensure the washer is correctly sized for the bolt and seated flush against the mating surface before tightening.
Full Depressurization: For safety, always fully depressurize the waterjet system before loosening bolts or nuts associated with this washer.







