S-96582A445 3.125" ID x 5.5" OD ASME B18.21.1 USS Washers
USS 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 with black protective coating extends service life in harsh industrial environments
- Optimal load distribution through large 5.5" outer diameter prevents surface damage and joint loosening
- Precision fit for 3" screws with consistent 3.125" inner diameter ensures reliable installation and alignment
- Heavy-duty construction using coated steel provides exceptional durability under high-stress applications
- Industry-standard compliance with ASME B18.21.1 guarantees consistent quality and performance
- Environmental responsibility through RoHS 3 and REACH compliance meets modern regulatory requirements
- Versatile thickness range (0.249-0.327") accommodates various compression needs and assembly tolerances
Professional Applications & Engineering Value
This USS flat washer delivers critical engineering solutions where corrosion resistance and load distribution are paramount. The black corrosion-resistant coated steel construction specifically addresses premature failure in outdoor infrastructure, marine equipment, and industrial machinery exposed to moisture and chemicals. With its substantial 5.5" OD surface area, this flat washer effectively distributes clamping force across wider surfaces, preventing material deformation and maintaining bolt tension in heavy structural connections. The precise 3.125" ID ensures perfect compatibility with 3" screw size applications, eliminating installation issues in critical assemblies from bridge construction to heavy equipment manufacturing where vibration resistance and long-term reliability are non-negotiable.
Specification Summary & Compliance
This USS pattern flat washer features dimensional specifications including 3.125" inner diameter, 5.5" outer diameter, and thickness range of 0.249-0.327" manufactured to ASME B18.21.1 standards. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility while meeting industrial requirements for corrosion-resistant coated steel components in inch system applications.
