S-95630A877 0.281" ID x 0.625" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional high-temperature performance – withstands continuous exposure up to 500°F, ideal for demanding thermal environments.
• Superior chemical resistance – PTFE material resists a wide range of corrosive chemicals, ensuring long-term reliability.
• Optimal load distribution and vibration resistance – flat design with precise ID and OD dimensions protects surfaces and maintains fastener integrity.
• Consistent hardness and durability – Durometer 55D rating provides reliable mechanical strength without compromising flexibility.
• Broad industrial compliance – meets RoHS 3 and REACH standards for safe use in regulated applications.
• Non-corrosive and electrically insulating – PTFE construction prevents galvanic corrosion and electrical conduction.
• Precision fit for 1/4" screws – 0.281" ID and 0.625" OD ensure easy installation and secure seating.

Professional Applications & Engineering Value

This PTFE plastic flat washer is engineered to address critical challenges in high-temperature and chemically aggressive industrial settings. Made from pure PTFE (Polytetrafluoroethylene), it provides an inert barrier that resists degradation from acids, solvents, and extreme heat up to 500°F—preventing seal failure and fastener corrosion. The flat washer design ensures even pressure distribution under 1/4" screws, reducing stress concentrations and minimizing loosening in vibrating equipment. Its white color and consistent Durometer 55D hardness offer reliable performance in applications like chemical processing, food machinery, and electrical enclosures, where non-conductive and non-stick properties are essential. By integrating RoHS 3 and REACH compliance, it supports sustainable and safe manufacturing practices.

Specification Summary & Compliance

This flat washer adheres to inch system measurements with an inner diameter (ID) of 0.281", outer diameter (OD) of 0.625", and thickness ranging from 0.051" to 0.080", designed specifically for 1/4" screw size applications. Manufactured from PTFE plastic with a Durometer 55D hardness, it meets standard dimensional and material consistency requirements. 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 industrial use.