S-91367A957 0.29" ID x 0.688" OD Rubber Sealing Washers
Rubber Sealing 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 temperature resistance from -60°F to 400°F ensures reliable performance in extreme thermal cycling environments
- Superior chemical and fluid compatibility due to fluorosilicone rubber construction, ideal for harsh industrial applications
- Optimal sealing and vibration dampening with 60A durometer hardness balancing flexibility and compression resistance
- Precise dimensional fit for 5/16" screws with 0.29" ID and 0.688" OD, preventing loosening and misalignment
- Consistent thickness tolerance (0.083-0.103") ensures uniform load distribution and sealing pressure
- Regulatory compliance with RoHS 3 and REACH standards guarantees safe use in regulated industries
- High-visibility blue color simplifies installation identification and inventory management
Professional Applications & Engineering Value
Engineered for demanding environments, these fluorosilicone rubber flat washers solve critical sealing and insulation challenges where standard elastomers fail. The fluorosilicone material delivers exceptional resistance to fuels, oils, solvents, and extreme temperatures from -60°F to 400°F, making them ideal for aerospace, automotive, and chemical processing applications. Their 60A durometer hardness provides optimal compression set resistance while maintaining sealing integrity under prolonged vibration and thermal stress. The precise 5/16" screw size compatibility and inch-system dimensions ensure easy integration into existing assemblies, reducing downtime and replacement costs in high-temperature gasketing, electrical insulation, and fluid handling systems.
Specification Summary & Compliance
This flat washer meets inch-system dimensional standards with 0.29" ID, 0.688" OD, and thickness range of 0.083-0.103". Manufactured from fluorosilicone rubber with 60A durometer hardness, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to restricted substance directives. The washer is designed for consistent performance across specified temperature limits and industrial applications requiring chemical resistance and thermal stability.
