S-95630A811 0.137" ID x 0.5" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional heat resistance up to 500°F, ensuring reliable performance in high-temperature industrial environments without degradation.
• Superior chemical inertness from PTFE material, providing excellent resistance to corrosive substances and extending service life.
• Consistent dimensional stability with precise 0.137" ID and 0.5" OD, ensuring proper fit and load distribution for No. 5 screws.
• Optimal hardness (Durometer 55D) offering a balance of flexibility and durability to prevent cracking under compression.
• Enhanced electrical insulation properties, making these washers ideal for applications requiring non-conductive components.
• Full compliance with RoHS 3 and REACH regulations, guaranteeing safe use in regulated industries and global market acceptance.
• Low friction surface reduces wear on mating components, lowering maintenance needs and operational costs.

Professional Applications & Engineering Value

Engineered for demanding scenarios, these PTFE plastic flat washers excel in applications where chemical resistance and high-temperature stability are critical. The PTFE (Teflon) material inherently resists aggressive chemicals, acids, and solvents, preventing premature failure in chemical processing, automotive, or aerospace assemblies. With a maximum temperature rating of 500°F, they maintain integrity in thermal cycling environments, such as near engines or heating systems. The flat washer design ensures even pressure distribution for No. 5 screw fastenings, reducing stress concentrations and improving joint reliability. Additionally, their electrical insulation properties make them suitable for electronic enclosures or electrical equipment, safeguarding against short circuits. This combination of material excellence and precise dimensions addresses common industrial pain points like corrosion-induced downtime, thermal expansion mismatches, and insulation breakdown, delivering long-term operational savings and enhanced safety.

Specification Summary & Compliance

This flat washer adheres to inch system measurements with an inner diameter of 0.137", outer diameter of 0.5", and thickness ranging from 0.027" to 0.035", designed specifically for No. 5 screw sizes. Manufactured from PTFE plastic with a Durometer 55D hardness, it meets industry standards for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial applications, supporting global supply chain requirements.