S-90474A103 0.805" ID x 1.375" OD ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from Black-Oxide 18-8 Stainless Steel, ideal for harsh environments and extending service life.
• Exceptional durability with Rockwell B68 hardness, maintaining structural integrity under heavy loads and repeated use.
• Precise fit for 3/4" screws with 0.805" ID and 1.375" OD, ensuring secure fastening and even load distribution.
• Consistent thickness (0.050-0.080") for reliable performance and compatibility in inch-system assemblies.
• Compliance with RoHS 3 and REACH regulations, guaranteeing safety and environmental standards for industrial applications.
• Versatile heavy-duty use in machinery, construction, and outdoor equipment due to robust material and design.
• Enhanced aesthetics and minimal maintenance with the black-oxide finish, reducing visibility of wear and corrosion.

Professional Applications & Engineering Value

This Black-Oxide 18-8 Stainless Steel Flat Washer is engineered to address common industrial challenges like corrosion, vibration loosening, and load stress. The 18-8 stainless steel material provides excellent resistance to rust and chemicals, making it suitable for demanding environments such as marine, automotive, and construction sectors. With a precise 0.805" ID and 1.375" OD, it ensures a snug fit for 3/4" screws, distributing pressure evenly to prevent damage to connected surfaces. The flat washer design enhances stability in assemblies, reducing the risk of fastener failure under heavy loads. Ideal for applications requiring corrosion-resistant washers and compliance with strict regulations, this component delivers long-term reliability and cost savings by minimizing replacements and downtime.

Specification Summary & Compliance

This washer features precise dimensions: Internal Diameter of 0.805", Outer Diameter of 1.375", and Thickness ranging from 0.050" to 0.080", designed for use with 3/4" screw sizes in inch-based systems. It adheres to standard manufacturing tolerances for flat washers and boasts a Rockwell B68 hardness for consistent performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets industrial safety and environmental requirements, ensuring safe use in various sectors without hazardous substances.