S-97215A101 0.115" ID x 0.305" OD Insulating Washers

Key Features & Benefits at a Glance

• Exceptional thermal resilience for reliable performance in environments ranging from -40°F to 180°F, preventing material degradation under extreme conditions.
• Superior electrical insulation properties due to nylon plastic construction, reducing risks of short circuits in electrical assemblies.
• High mechanical durability with Rockwell R120 hardness, ensuring long service life and resistance to wear in high-vibration applications.
• Precise dimensional fit with 0.115" ID and 0.245" cup ID, designed specifically for No. 4 screws to prevent loosening and ensure secure fastening.
• Corrosion and chemical resistance inherent in nylon material, making it ideal for harsh industrial or outdoor settings.
• RoHS 3 compliance guarantees environmental safety and meets strict regulatory standards for global industrial use.
• Lightweight and non-magnetic off-white design, suitable for applications where weight reduction and non-interference with electronic components are critical.

Professional Applications & Engineering Value

This nylon plastic sleeve washer is engineered to address common industrial challenges such as thermal expansion, electrical isolation, and chemical exposure. Its sleeve type design with precise 0.115" ID and 0.305" OD ensures a snug fit for No. 4 screw size fasteners, minimizing play and vibration-induced failures. The nylon material offers excellent dielectric strength, making it a top choice for electrical insulation in control panels, automotive electronics, and appliance manufacturing. Additionally, its ability to withstand temperatures from -40°F to 180°F makes it reliable in automotive, aerospace, and outdoor equipment, where thermal cycling can compromise inferior washers. The off-white color and Rockwell R120 hardness further enhance its durability in mechanical assemblies, providing long-term stability without galvanic corrosion risks.

Specification Summary & Compliance

This washer adheres to inch system measurements with key dimensions: ID 0.115", OD 0.305", thickness 0.040", overall height 0.157", inside depth 0.117", and cup ID 0.245". It is manufactured to precise tolerances suitable for No. 4 screw applications, ensuring consistent performance. The product is fully RoHS 3 (2015/863/EU) compliant, confirming it is free from hazardous substances, and meets industry standards for material hardness (Rockwell R120) and temperature resilience. Ideal for use in regulated sectors requiring electrical insulation and environmental safety.