S-90108A176 0.813" ID x 2" 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 load distribution with 2" outer diameter to prevent surface damage and maintain joint integrity
- Enhanced corrosion resistance through zinc-plated steel construction for extended service life in harsh environments
- Precise 0.813" inner diameter ensures perfect fit and alignment with 3/4" fasteners
- Grade 5 strength classification provides reliable performance in high-stress industrial applications
- ASME B18.21.1 compliance guarantees consistent quality and dimensional accuracy
- Environmental regulation compliance with RoHS 3 and REACH standards for safe global usage
- Optimal thickness range (0.122-0.177") balances compression resistance and installation flexibility
Professional Applications & Engineering Value
This USS flat washer delivers critical engineering solutions for industrial applications where vibration resistance and load distribution are paramount. The zinc-plated steel construction provides essential corrosion protection in manufacturing facilities, construction sites, and outdoor equipment assemblies. With its 2" OD and 0.813" ID, this washer effectively distributes clamping force across a wider surface area, preventing joint loosening and material deformation in 3/4" screw applications. The Grade 5 material strength ensures reliable performance in structural connections, machinery assembly, and heavy equipment maintenance, while the inch system compatibility makes it ideal for North American industrial standards and replacement part programs.
Specification Summary & Compliance
Manufactured to ASME B18.21.1 standards for dimensional consistency and performance reliability. The washer features precise inch system measurements with 0.813" inner diameter and 2" outer diameter, designed specifically for 3/4" screw size applications. Constructed from zinc-plated steel with Grade 5 strength classification. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
