S-90313A301 0.156" ID x 0.75" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel, ensuring long-term reliability in humid or harsh industrial environments.
• Precise dimensional fit with 0.156" ID and 0.75" OD, designed to securely fit No. 6 screws and prevent loosening under vibration.
• Enhanced load distribution across surfaces, reducing stress and preventing damage to assembled components.
• Consistent thickness range (0.036-0.065") for uniform performance and ease of installation in repetitive assembly operations.
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in global markets and environmentally sensitive applications.
• Durable material properties offering excellent strength and wear resistance without the need for additional coatings.
• Versatile inch-system compatibility, making it ideal for replacement or OEM use in North American machinery and equipment.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address common industrial challenges such as galvanic corrosion, component wear, and fastener failure. Its corrosion-resistant properties make it suitable for demanding environments like marine, chemical processing, and outdoor equipment, where moisture and chemicals are prevalent. The precise 0.156" ID and 0.75" OD ensure a snug fit for No. 6 screws, distributing clamp load evenly to prevent surface damage and maintain joint integrity under dynamic loads. By utilizing stainless steel flat washers in assembly lines, manufacturers achieve consistent performance, reduce maintenance cycles, and enhance the longevity of mechanical systems, supporting efficient production and reliable end-use applications.

Specification Summary & Compliance

This flat washer adheres to standard inch-system dimensions with an inner diameter of 0.156", outer diameter of 0.75", and thickness ranging from 0.036" to 0.065", ensuring precise fit for No. 6 screw sizes. Manufactured from 18-8 stainless steel, it meets general industry standards for flat washers without a specific hardness rating. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted substances and supporting environmental safety in industrial and commercial use.