S-91525A130 0.344" ID x 1.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel construction, ideal for harsh environments including marine and chemical applications
• Precise dimensional fit with 0.344" inner diameter specifically engineered for 5/16" screw sizes to prevent loosening and ensure secure fastening
• Optimal load distribution with 1.5" outer diameter design that minimizes surface pressure and prevents material damage
• Consistent performance maintained through controlled thickness range (0.052-0.072") for reliable spacing and vibration resistance
• Environmental compliance assurance with full RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for global industrial applications
• Long-term durability in corrosive environments thanks to 316 stainless steel's enhanced resistance to chlorides and industrial chemicals
• Interchangeable compatibility with inch-system fasteners and equipment, ensuring easy integration into existing assemblies

Professional Applications & Engineering Value

These 316 stainless steel flat washers deliver exceptional engineering value in demanding applications where corrosion resistance is critical. The inch-system washers with precise 0.344" ID are specifically designed for 5/16" screw applications, ensuring perfect fit and preventing fastener loosening under vibration. The generous 1.5" OD provides superior load distribution across surfaces, protecting sensitive materials from indentation and damage. Manufactured from 316 stainless steel, these washers offer enhanced protection against pitting and crevice corrosion in marine environments, chemical processing plants, and offshore applications. The controlled thickness range maintains consistent performance in assembly spacing while the RoHS 3 and REACH compliance ensures these components meet the strictest environmental regulations for industrial and export applications.

Specification Summary & Compliance

This flat washer features inch-system dimensions with 1.5" outer diameter, 0.344" inner diameter specifically designed for 5/16" screw sizes, and thickness ranging from 0.052" to 0.072". Manufactured from 316 stainless steel for maximum corrosion resistance, these washers are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC requirements as of June 14, 2023. The product meets industrial standards for dimensional accuracy and material quality suitable for critical fastening applications across various sectors.