S-91081A048 2.625" ID x 5" OD ASME B18.21.1 USS Washers

Key Features & Benefits at a Glance

• Exceptional Load Distribution - The large 5" outer diameter provides superior surface coverage, preventing surface damage and material deformation under heavy loads
• Precision Fit for 2 1/2" Fasteners - 2.625" inner diameter ensures perfect compatibility with standard 2 1/2" screw sizes, eliminating installation issues
• Robust Steel Construction - Manufactured from high-quality steel for reliable performance in demanding industrial environments and extended service life
• Standardized Thickness Range - 0.210-0.280" thickness provides consistent spacing and reliable performance across various applications
• Industry Compliance Assurance - Full compliance with ASME B18.21.1 standards guarantees dimensional accuracy and mechanical reliability
• Environmental Responsibility - RoHS 3 and REACH compliance ensures safe usage while meeting international environmental regulations
• Heavy-Duty Performance - USS designation confirms suitability for structural and high-stress applications requiring maximum reliability

Professional Applications & Engineering Value

These USS flat washers deliver critical engineering solutions for heavy-duty industrial applications where load distribution and surface protection are paramount. The steel construction provides exceptional durability in construction, machinery assembly, and structural steel connections. The precise 2.625" ID ensures perfect alignment with 2 1/2" screw sizes, while the substantial 5" OD effectively distributes clamping forces across wider surface areas, preventing material crushing and joint loosening. Engineered to ASME B18.21.1 standards, these inch system washers maintain dimensional consistency across large-scale projects, reducing installation time and ensuring reliable performance in critical connections where vibration resistance and long-term stability are essential.

Specification Summary & Compliance

This USS flat washer features precise dimensional specifications including 2.625" inner diameter, 5" outer diameter, and 0.210-0.280" thickness range, manufactured to ASME B18.21.1 standards for dimensional accuracy and mechanical performance. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. Designed specifically for use with 2 1/2" screw sizes in inch measurement systems, these washers provide reliable performance in structural and heavy industrial applications requiring standardized components.