S-95630A889 0.125" ID x 0.438" OD Plastic Washers
Plastic Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional thermal stability withstanding continuous exposure up to 500°F, ideal for high-heat industrial environments
- Superior chemical resistance against corrosive substances, ensuring long-term performance in aggressive applications
- Precise dimensional fit with 0.125" ID and 0.438" OD designed specifically for No. 4 screws, providing reliable fastening
- Optimal hardness balance with Durometer 55D rating, offering excellent load distribution without damaging mating surfaces
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
- Low friction PTFE construction reducing wear and preventing galling in dynamic applications
- Non-conductive properties providing electrical insulation in electronic and electrical assemblies
Professional Applications & Engineering Value
These PTFE plastic flat washers deliver critical performance advantages in demanding industrial settings where conventional metal washers fail. The white PTFE material provides inherent chemical resistance that prevents degradation from oils, solvents, and aggressive chemicals, while maintaining structural integrity at maximum temperatures of 500°F. This makes them ideal for high-temperature applications in chemical processing, food manufacturing, and aerospace industries. The precise 0.125" ID x 0.438" OD dimensions ensure perfect compatibility with No. 4 screw sizes, providing reliable sealing and load distribution in tight-tolerance assemblies. Their non-stick properties prevent material buildup and facilitate easy maintenance in processing equipment.
Specification Summary & Compliance
This flat washer features inch system dimensions with inner diameter of 0.125", outer diameter of 0.438", and thickness ranging from 0.036" to 0.045". Manufactured from PTFE plastic with Durometer 55D hardness, the washer complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial use across global markets.
