S-90061A011 0.201" ID x 0.437" OD Insulating Washers

Key Features & Benefits at a Glance

• Excellent electrical insulation properties from Nylon 6/6 plastic, preventing current leakage and short circuits in sensitive assemblies.
• Superior corrosion and chemical resistance ensures long-term reliability and performance in harsh environments without rusting or degrading.
• Wide operating temperature range from -40°F to 180°F, maintaining dimensional stability and mechanical integrity in both extreme cold and moderate heat.
• Precise dimensional fit with 0.201" ID and 0.437" OD for reliable performance with No. 10 screws, reducing installation errors and improving assembly quality.
• Sleeve design provides enhanced bearing surface, distributing load more effectively and protecting components from damage during tightening.
• Lightweight and non-magnetic construction reduces overall assembly weight and is ideal for applications where magnetic interference is a concern.
• Environmentally responsible manufacturing with full compliance to RoHS 3 (2015/863/EU), ensuring safety and regulatory adherence for global markets.

Professional Applications & Engineering Value

This Nylon 6/6 Plastic Sleeve Washer is engineered to solve critical challenges in electrical and electronic assemblies, automotive systems, and outdoor equipment. Its sleeve type design offers a larger bearing surface than flat washers, which helps prevent pull-through and distributes clamping force evenly to protect soft or fragile materials. The inherent properties of Nylon 6/6—including its high strength, low friction, and excellent dielectric characteristics—make it an ideal choice for insulating washer applications where metal fasteners must be isolated to prevent galvanic corrosion or electrical shorts. With a reliable temperature range from -40°F to 180°F, it performs consistently in environments subject to thermal cycling, ensuring long-term fastener integrity and assembly safety without the need for frequent maintenance or replacement.

Specification Summary & Compliance

This inch-system washer features precise dimensions: Inside Diameter (ID) of 0.201", Outside Diameter (OD) of 0.437", and a sleeve height of 0.05", designed specifically for No. 10 screw applications. Manufactured from Nylon 6/6 plastic in black, it ensures consistent performance and is fully compliant with RoHS 3 (2015/863/EU) regulations, confirming the absence of hazardous substances for safe use in various industrial and consumer products.