Plain washer, Large series
Шайба плоская увеличенная
Arandela plana, serie grande
The 90014030008 OEM Plain Washer, Large Series is a precision-manufactured heavy-duty load distribution component designed exclusively for the Shacman X5000 truck platform. This essential washer features an enlarged outer diameter relative to its bolt size, providing a significantly increased bearing surface area that distributes the fastener clamping force over a wider footprint, preventing the bolt head or nut from embedding into softer materials, reducing surface pressure on mating components, and protecting the bolted assembly from damage under the high clamping loads and dynamic forces of heavy-duty truck operation.
Manufactured from high-grade hardened steel with precisely controlled flatness, parallelism, and surface finish, the plain washer delivers exceptional compressive strength, dimensional stability, and long-term durability. The 90014030008 part features accurately formed inner and outer diameters that fit perfectly around the specified bolt or stud shank, with a smooth, burr-free surface that ensures uniform load transfer without damaging the mating component surfaces under the designed assembly torque.
Installing a genuine OEM plain washer at every designated bolted joint preserves the designed load distribution and protects critical components from the damage caused by concentrated bolt head pressure. The 90014030008 identifier provides complete traceability to Shacman’s rigorous material specifications and precision manufacturing quality assurance standards for this essential fastening component.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | 90014030008 | Unique Shacman X5000 identifier |
| Product Name | Plain washer, Large series | Enlarged outer diameter flat washer |
| Brand / Vehicle Model | Shacman X5000 | Heavy-duty truck series |
| Material | High-grade hardened steel | Excellent compressive strength and durability |
| Manufacturing Process | Precision stamped and hardened | Consistent flatness and dimensional accuracy |
| Function | Load distribution and surface protection | Enlarged bearing area for reduced surface pressure |
| Surface Finish | Zinc-plated, phosphated, or coated | Corrosion protection for under-hood and chassis use |
| Flatness and Parallelism | Precision controlled within tight tolerances | Ensures uniform load transfer without point loading |
| Application | Engine, chassis, and body bolted assemblies | Distributes bolt clamp load and protects mating surfaces |
| Packaging | Protective sealed packaging | Shacman genuine labeled packaging |
The large outer diameter spreads the fastener clamp load over a significantly wider surface area, dramatically reducing the contact pressure and preventing the bolt head from embedding into softer aluminum, plastic, or composite components.
The 90014030008 washer provides a smooth, hard bearing surface that prevents the rotating bolt head from galling, scratching, or otherwise damaging the component surface during tightening and throughout the service life.
By preventing surface embedment and providing a consistent friction interface, the hardened washer helps maintain the designed bolt tension and prevents the clamp load relaxation that leads to joint loosening.
The plain washer 90014030008 is installed under the head of a bolt or under a nut on the Shacman X5000 vehicle, positioned directly against the component surface. Before installation, the washer and the mating surfaces must be clean and free of debris, burrs, or contamination that could prevent the washer from seating flat. The washer is placed over the bolt or stud shank, and the fastener is installed and torqued to the specified value. The washer should be positioned with its smoother side against the component surface to minimize friction and surface damage during tightening. It is critical to use the correct torque value; under-tightening will not achieve the designed clamp load, while over-tightening can exceed the compressive strength of the washer or the component material. Plain washers are generally reusable if they remain flat and free of deformation, but should be replaced if they show any signs of dishing, cracking, or surface damage.
Each plain washer produced under OEM number 90014030008 is manufactured from high-grade hardened steel strip material selected for its compressive strength, hardness, and wear resistance. The washer is precision-stamped from the steel strip using dedicated tooling that produces the exact inner diameter, outer diameter, and material thickness specified by Shacman engineering. The stamping process is carefully controlled to ensure the washer faces are flat and parallel, with clean, burr-free edges that will not damage mating surfaces or cause injury during handling.
After stamping, the washer undergoes a hardening and tempering process that achieves the specified hardness and mechanical properties. The washer then receives a surface treatment such as zinc electroplating, phosphating, or another coating that provides corrosion protection appropriate for its installation environment. Each production batch undergoes dimensional inspection to verify inner diameter, outer diameter, thickness, flatness, and parallelism. Sample washers are subjected to hardness testing and crush testing to confirm they meet Shacman’s stringent performance standards. The washers are packaged in sealed quantities and labeled with the 90014030008 part number for complete traceability.
Plain washers should be visually inspected whenever the fastener they secure is removed for service. Technicians should examine the washer for any signs of dishing, cracking, or surface deformation that could affect its ability to distribute load evenly. A washer that shows visible wear, corrosion pitting that has reduced its thickness, or deformation from over-tightening must be replaced. The washer should also be checked to ensure it remains flat; a washer that has become dished or cupped will not provide uniform load distribution and may cause uneven fastener tension.
While plain washers are generally reusable, they should be replaced if there is any doubt about their condition. The cost of a new plain washer is negligible compared to the potential damage caused by a washer that fails to perform its load distribution function, allowing a bolt head to embed into a component, causing clamp load loss, joint loosening, or irreparable damage to expensive cast or machined parts. When reinstalling a fastener, always ensure the correct washer type and size is used, and replace any washers that show signs of wear or damage with new 90014030008 components.
Procuring the authentic plain washer for your Shacman X5000 fastening application is a simple process that ensures proper load distribution and component protection. Use the inquiry button above to verify current stock availability and request a prompt quotation. We maintain comprehensive inventory of these essential load distribution components to support both individual assembly repairs and complete fleet maintenance programs across all international markets.
To ensure you receive the exact factory-specified plain washer with correct dimensions and material for your application, always reference the OEM part number 90014030008 in your purchase order. Our logistics team provides complete export documentation with every international shipment for efficient customs clearance and inventory verification at your facility.
Global Stock Available
Immediate dispatch for Shacman X5000 fastening applications worldwide.
Choosing the genuine Plain Washer, Large Series 90014030008 is a decision that directly protects the structural integrity and component longevity of your Shacman X5000 vehicle’s critical bolted assemblies. Aftermarket plain washers manufactured from inferior materials, with incorrect dimensions, or lacking proper flatness can fail to distribute the fastener load evenly, causing the bolt head to embed into the component surface. This embedment leads to clamp load relaxation, joint loosening, and potential component cracking or failure, especially in aluminum and composite components commonly used on modern heavy-duty trucks.
The OEM plain washer’s specific material grade, precise dimensions, and controlled hardness were validated through extensive fastener joint analysis and vehicle durability testing. Shacman engineers specified this exact washer design to provide the optimal load distribution and surface protection that each bolted joint on the X5000 vehicle requires. The 90014030008 washer delivers the dependable load-bearing performance that keeps components securely clamped and protected from damage across hundreds of thousands of demanding kilometers.
Professional fleet technicians and maintenance managers worldwide standardize on the 90014030008 plain washer for its guaranteed material quality, precise fit, and proven load distribution performance in the field. This simple but essential component plays a vital role in spreading the clamping force of every bolted joint, protecting expensive components from the concentrated pressure that would otherwise cause damage and joint failure. Trust only the plain washer that Shacman engineered and certified for the demanding X5000 heavy truck platform.
The plain washer, large series 90014030008 is particularly important in applications where bolts pass through aluminum, plastic, or composite components that have lower compressive strength than the steel bolt. Without the enlarged bearing area provided by this washer, the concentrated pressure under the bolt head could exceed the yield strength of the softer material, causing the bolt head to sink into the component. This embedment effectively reduces the bolt tension and clamp load, potentially leading to joint loosening, fluid leaks at gasketed joints, or fatigue cracking of the component around the bolt hole.
The hardened steel construction of the washer provides a durable, non-galling bearing surface that also reduces the friction between the rotating bolt head and the stationary component during tightening. This controlled friction allows the specified bolt torque to achieve a more consistent and predictable clamp load, which is essential for critical joints where precise clamp force is required for proper gasket compression, bearing preload, or structural integrity. Using the correct OEM washer ensures this friction interface is consistent with the engineering assumptions used to establish the torque specification.
For our international customers, we take exceptional care in packaging the 90014030008 plain washers to prevent any corrosion, surface damage, or deformation during global transit and extended warehouse storage. The washers are packed in sealed, moisture-resistant packaging that preserves their flatness and surface finish. Partner with our global supply network for a reliable source of genuine Shacman fastening components, and ensure that every bolted joint on your fleet’s vehicles has the load distribution and surface protection that Shacman engineers designed for maximum reliability and long service life.
