S-91525A477 0.348" ID x 1" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction, ideal for marine and chemical applications
• Precise dimensional fit with 0.348" inner diameter ensuring secure seating and optimal load distribution for 5/16" screws
• Enhanced surface protection with a 1" outer diameter providing broad bearing surface to prevent embedment and joint loosening
• Consistent performance maintained through controlled 0.060-0.090" thickness range for reliable gapping and vibration resistance
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industrial sectors
• Durable material integrity offering excellent stress resistance and long-term reliability in high-moisture conditions
• Inch-system compatibility for seamless integration with standard SAE fastener assemblies and replacement parts

Professional Applications & Engineering Value

Engineered for demanding environments, these 316 stainless steel flat washers deliver exceptional value in applications where corrosion failure is not an option. The marine-grade alloy composition provides superior resistance to saltwater, chemicals, and extreme temperatures, solving common fastener degradation problems in offshore, wastewater treatment, and food processing equipment. With precise inch-system dimensions including the 1" OD and 0.348" ID specifically designed for 5/16" screw size compatibility, these washers ensure perfect fitment while distributing clamp load effectively to prevent surface damage and maintain joint integrity under vibration and thermal cycling. The controlled thickness tolerance guarantees consistent performance in assembly lines, reducing installation time and replacement frequency.

Specification Summary & Compliance

This flat washer conforms to standard inch-system dimensional requirements with 1" outer diameter, 0.348" inner diameter, and thickness ranging 0.060-0.090". Manufactured from 316 stainless steel for optimal corrosion resistance, the product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest substance restriction requirements for industrial and marine applications.