S-91145A253 0.255" ID x 0.625" OD Insulating Washers

Key Features & Benefits at a Glance

• Excellent electrical insulation and corrosion resistance from Nylon 6/6 material, ideal for preventing galvanic corrosion and electrical short circuits in sensitive assemblies.
• Reliable performance across extreme temperatures, maintaining integrity from -40°F to 180°F, ensuring stability in harsh industrial environments.
• Superior durability and wear resistance with Rockwell R108 hardness, reducing deformation and extending service life under repeated loads.
• Precise fit for 1/4" screws with 0.255" ID and sleeve design, providing secure fastening and vibration resistance in mechanical assemblies.
• Compliance with stringent environmental standards, including RoHS 3 and REACH, ensuring safe use in regulated industries and global markets.
• Lightweight and non-magnetic properties of off-white Nylon 6/6, reducing overall weight and avoiding interference in electronic or MRI applications.
• Cost-effective alternative to metal washers, offering reduced maintenance and no need for additional lubrication in various applications.

Professional Applications & Engineering Value

This Nylon 6/6 plastic sleeve washer is engineered to address common industrial challenges such as component wear, thermal expansion, and chemical exposure. Its sleeve-type design enhances load distribution and prevents loosening under vibration, making it ideal for automotive, electronics, and machinery assemblies. The material's low moisture absorption and high Rockwell R108 hardness ensure dimensional stability and resistance to deformation, even in fluctuating temperatures from -40°F to 180°F. By utilizing this RoHS and REACH compliant washer, engineers can achieve reliable, long-term fastening solutions without the risk of corrosion or regulatory non-compliance, streamlining maintenance and reducing lifecycle costs in demanding environments.

Specification Summary & Compliance

This washer features precise dimensions including 0.255" ID, 0.625" OD, 0.062" thickness, and 0.249" overall height, manufactured to inch system standards for compatibility with 1/4" screws. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety requirements. The Nylon 6/6 plastic construction provides consistent performance within specified temperature ranges, supporting quality and reliability in industrial fastener applications.