S-90108A174 0.563" ID x 1.375" OD ASME B18.21.1 USS Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• Optimal load distribution across 1.375" OD surface area, preventing surface damage and fastener loosening under vibration
• Precision dimensional compatibility with 0.563" ID ensuring perfect fit for 1/2" screw applications
• Enhanced mechanical reliability through Grade 5 material strength, maintaining integrity under high-stress conditions
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing interchangeability and performance consistency
• Environmental regulation adherence with RoHS 3 and REACH compliance, meeting global sustainability requirements
• Versatile thickness range (0.086-0.132") accommodating various assembly clearance and tension requirements

Professional Applications & Engineering Value

This USS flat washer delivers critical engineering solutions through its zinc-plated steel construction and standardized dimensions. The corrosion-resistant surface treatment combats moisture and chemical exposure in industrial settings, while the Grade 5 material provides reliable performance in structural assemblies, machinery mounting, and heavy equipment applications. The washer's 1.375" OD creates an optimal bearing surface that distributes clamping forces evenly, preventing joint failure and material deformation around 1/2" screw connections. Engineered to ASME B18.21.1 specifications, these washers ensure dimensional consistency across replacement cycles and maintenance operations, reducing downtime in manufacturing, construction, and mechanical systems where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional standards with 0.563" inner diameter and 1.375" outer diameter. Constructed from Grade 5 zinc-plated steel with thickness ranging 0.086-0.132". Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring hazardous substance restrictions are met for global distribution and industrial use.