S-92303A114 1.375" ID x 4" OD Oversized Washers
Oversized Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance from 18-8 stainless steel composition, ideal for humid or chemically aggressive industrial environments.
- Exceptional load distribution with a large 4" OD, protecting surfaces and preventing fastener loosening under heavy loads.
- Precision fit for 1 1/4" screws with a 1.375" ID, ensuring secure fastening and reducing installation time.
- Enhanced durability and deformation resistance provided by Rockwell B83 hardness, maintaining performance in high-stress applications.
- Reliable thickness tolerance (0.485-0.515") for consistent performance and predictable clamping force in assemblies.
- Full regulatory compliance with RoHS 3 and REACH, ensuring safety and environmental standards for global supply chains.
- Heavy-duty industrial grade construction designed for long-term reliability in demanding mechanical and structural applications.
Professional Applications & Engineering Value
This 18-8 stainless steel flat washer is engineered to address critical challenges in heavy machinery, construction, and marine applications where corrosion resistance and structural integrity are paramount. The inch system dimensions (1.375" ID x 4" OD) and Rockwell B83 hardness ensure reliable performance under sustained vibration and load, preventing joint failure. Its large outer diameter effectively distributes pressure, protecting soft materials and reducing stress concentrations. Ideal for use with 1 1/4 inch screws in industrial hardware assemblies, this precision washer offers long-term reliability in harsh environments, minimizing maintenance and replacement costs.
Specification Summary & Compliance
This flat washer meets standard inch system tolerances with an ID of 1.375", OD of 4", and thickness range of 0.485-0.515". Manufactured from 18-8 stainless steel with a hardness of Rockwell B83, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial components.
