S-90313A504 0.172" ID x 0.5" OD Oversized Washers
Oversized Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
- Enhanced load distribution with precise 0.172" ID and 0.5" OD dimensions, reducing surface stress on assemblies
- Excellent durability backed by Rockwell B68 hardness, ensuring long-term performance under repeated use
- Reliable fit for No. 8 screws, providing secure fastening and preventing loosening in inch-system applications
- Consistent thickness (0.050-0.080") for uniform spacing and vibration resistance in mechanical setups
- Environmentally compliant with RoHS 3 and REACH standards, meeting global regulatory requirements
- Versatile industrial use across machinery, automotive, and construction sectors due to robust material properties
Professional Applications & Engineering Value
This No. 8 flat washer in 18-8 stainless steel addresses critical engineering challenges like corrosion-induced failure and uneven load distribution. Its inch-system sizing (0.172" ID x 0.5" OD) ensures precise compatibility with No. 8 screws, minimizing assembly errors in industrial equipment. The Rockwell B68 hardness and corrosion-resistant properties make it suitable for demanding environments—from marine applications to food processing machinery—where moisture and chemicals are prevalent. By providing a reliable barrier against galvanic corrosion and surface abrasion, this washer extends the lifespan of fastened components, reducing maintenance costs and downtime in B2B procurement scenarios.
Specification Summary & Compliance
This flat washer adheres to inch measurement standards with an inner diameter of 0.172", outer diameter of 0.5", and thickness range of 0.050-0.080". It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. Manufactured from 18-8 stainless steel with a hardness of Rockwell B68, it meets general industrial tolerances for consistent performance in various applications.
