S-95630A420 0.125" ID x 0.25" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional high-temperature performance up to 500°F, ensuring reliable operation in demanding thermal environments without degradation.
• Superior chemical resistance from PTFE material, protecting against corrosive substances and extending component lifespan in harsh industrial settings.
• Excellent electrical insulation properties, providing safe, non-conductive separation in electrical assemblies to prevent short circuits.
• Low friction and non-stick surface, reducing wear on fastened components and simplifying maintenance in high-movement applications.
• Consistent dimensional accuracy with 0.125" ID and 0.25" OD, ensuring precise fit for No. 4 screws and stable load distribution.
• Durable construction with Durometer 55D hardness, offering resilience against compression and deformation under mechanical stress.
• Full regulatory compliance with RoHS 3 and REACH standards, guaranteeing safety and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

This PTFE plastic flat washer is engineered to address critical challenges in industrial environments where chemical exposure, extreme temperatures, and electrical hazards are prevalent. Made from high-purity PTFE (Teflon), it delivers unmatched chemical resistance, preventing degradation from acids, solvents, and bases that commonly compromise metal or rubber washers. The white PTFE material maintains integrity up to 500°F, making it ideal for high-temperature applications in automotive, aerospace, and chemical processing equipment. Its non-conductive properties provide essential insulation in electrical assemblies, reducing the risk of short circuits. With a precise 0.125" ID and 0.25" OD for No. 4 screw size, this flat washer ensures uniform load distribution and vibration resistance, solving common issues of loosening and component fatigue in machinery and piping systems.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.125", outer diameter of 0.25", and thickness range of 0.002-0.004", designed to inch system standards for compatibility with No. 4 screws. It is manufactured from PTFE plastic with a hardness of Durometer 55D, ensuring dimensional stability and performance under load. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to strict environmental and safety guidelines for hazardous substance restrictions.