S-90437A220 0.827" ID x 1.575" OD Adhesive-Back Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
• Secure adhesive bonding thanks to the acrylic backing that prevents loosening and misalignment during assembly
• Precise dimensional fit with 0.827" ID and 1.575" OD, ensuring compatibility with 3/4" screws and uniform load distribution
• Enhanced durability and load-bearing capacity from Rockwell B70 hardness, reducing wear and deformation under stress
• Reliable performance across temperatures from 50°F to 200°F, maintaining integrity in varied operating conditions
• Compliance with industry standards including SAE specifications, ensuring consistent quality and interchangeability
• Environmentally safe usage with RoHS 3 and REACH compliance, meeting global regulatory requirements for hazardous substances

Professional Applications & Engineering Value

This 316 stainless steel flat washer is engineered to address common industrial challenges such as fastener loosening, corrosion-induced failure, and assembly inefficiencies. The acrylic adhesive backing provides a strong, permanent bond that eliminates the need for additional fastening methods, reducing installation time and improving reliability in vibrating or high-stress environments. Its SAE compliance and precise dimensions (0.827" ID x 1.575" OD) ensure seamless integration with 3/4 inch screw systems, while the corrosion-resistant 316 material offers long-term protection in applications like chemical processing, marine equipment, and outdoor machinery. This washer delivers consistent performance, minimizes maintenance, and supports industrial fastening solutions that demand both mechanical strength and environmental safety.

Specification Summary & Compliance

This washer adheres to SAE standards with precise dimensions: Inside Diameter (ID) of 0.827", Outside Diameter (OD) of 1.575", and Thickness of 0.079". It is manufactured from 316 stainless steel with a hardness of Rockwell B70 and includes an acrylic adhesive layer of 0.039" thickness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it meets strict environmental and safety regulations for industrial use.