S-90089A375 0.625" ID x 0.875" 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
- Superior Electrical Insulation – Hard fiber construction provides excellent non-conductive properties for safe electrical applications.
- Reliable Sealing & Vibration Dampening – Compressible fiber material creates effective seals and absorbs shock in mechanical assemblies.
- High-Temperature Resistance – Withstands temperatures up to 230°F for stable performance in demanding environments.
- Precision Inch Dimensions – 0.625" ID and 0.875" OD ensure perfect fit for 5/8" screws with consistent 0.014-0.016" thickness.
- Environmental Compliance – Meets RoHS 3 and REACH standards for safe, regulated industrial use.
- Durable Material Performance – Hard fiber maintains integrity under compression without cracking or deforming.
- Corrosion-Resistant Properties – Natural fiber composition prevents galvanic corrosion between dissimilar metals.
Professional Applications & Engineering Value
This hard fiber flat washer delivers critical engineering solutions where electrical insulation and reliable sealing are paramount. The gray hard fiber material provides excellent dielectric properties while creating effective seals against fluids and gases in plumbing, HVAC, and electrical enclosures. Its compressible nature absorbs vibration in industrial machinery and prevents loosening of 5/8" screw fasteners. The precise 0.625" ID and 0.875" OD dimensions ensure proper load distribution without interfering with assembly components. With temperature resistance to 230°F, this washer maintains performance in engine compartments, heating systems, and outdoor equipment where thermal cycling occurs.
Specification Summary & Compliance
This flat washer features inch system dimensions with 0.625" inner diameter, 0.875" outer diameter, and controlled thickness between 0.014-0.016". Designed specifically for 5/8" screw size applications, the hard fiber construction provides consistent performance across industrial environments. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental standards for hazardous substance restrictions.
