S-90313A302 0.188" ID x 1" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Precise fit for No. 8 screws with a 0.188" inner diameter, ensuring secure fastening and reduced assembly time.
• Enhanced load distribution with a large 1" outer diameter, protecting surfaces and preventing fastener embedment.
• Consistent performance guaranteed by a controlled thickness range of 0.036" to 0.065", providing reliable spacing and vibration resistance.
• Full regulatory compliance with RoHS 3 and REACH, ensuring safety and environmental standards for global industrial use.
• Durable material integrity offers excellent strength and durability without the need for additional coatings or treatments.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address common industrial challenges such as corrosion-induced failure and surface damage under dynamic loads. Its inch series design, featuring a 0.188" ID and 1" OD, ensures optimal load distribution, reducing stress on joined materials and extending the life of assemblies. Made from stainless steel, it resists rust and chemical exposure, making it perfect for industrial applications in manufacturing, machinery, and outdoor equipment where reliability is critical. The flat profile and precise dimensions facilitate easy installation, supporting efficient fastening solutions in demanding environments.

Specification Summary & Compliance

This washer adheres to standard inch measurements with an inner diameter of 0.188", outer diameter of 1", and thickness ranging from 0.036" to 0.065", designed for use with No. 8 screw sizes. It is manufactured from 18-8 stainless steel and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for various technical and environmental requirements.