S-96659A131 0.219" ID x 0.5" OD ASME B18.21.1 SAE 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.
• Precise dimensional fit with 0.219" ID and 0.5" OD, ensuring reliable seating for No. 10 screws and uniform load distribution.
• Durable construction using 18-8 stainless steel, providing excellent strength and resistance to wear in mechanical assemblies.
• Compliance with ASME B18.21.1 standard, guaranteeing consistent quality, interchangeability, and performance in industrial applications.
• Enhanced environmental safety with RoHS 3 and REACH compliance, meeting strict regulations for hazardous substance restrictions.
• Versatile thickness range of 0.036-0.065", offering flexibility to accommodate varying assembly clearance and tension requirements.
• Reliable surface protection through the black-oxide finish, which reduces galling and provides additional corrosion inhibition.

Professional Applications & Engineering Value

This SAE flat washer is engineered to address common industrial challenges such as fastener corrosion, load instability, and regulatory compliance. Made from Black-Oxide 18-8 Stainless Steel, it offers robust resistance to rust and chemical exposure, making it suitable for demanding environments like outdoor machinery, marine equipment, and chemical processing plants. The precise inch system dimensions (0.219" ID x 0.5" OD) and adherence to ASME B18.21.1 ensure a secure fit for No. 10 screw applications, preventing loosening under vibration and distributing pressure evenly to protect sensitive surfaces. By integrating this washer, engineers can enhance assembly longevity, reduce maintenance costs, and meet stringent industry standards for safety and performance.

Specification Summary & Compliance

This washer features a flat design with an inner diameter of 0.219", outer diameter of 0.5", and thickness ranging from 0.036" to 0.065", tailored for screw size No. 10. It conforms to the ASME B18.21.1 standard, ensuring dimensional accuracy and mechanical consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and health safety requirements without the use of restricted substances.