S-90472A140 0.656" ID x 1.312" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 17-7 PH stainless steel material, ideal for harsh industrial environments and outdoor applications.
• Superior strength and durability with Rockwell C40 hardness, ensuring reliable performance under high stress and load conditions.
• Precise dimensional fit with 0.656" ID and 1.312" OD, designed specifically for 5/8" screws to prevent loosening and distribute load evenly.
• Compliance with ASME B18.21.1 standard guarantees consistent quality, interchangeability, and reliable performance in mechanical assemblies.
• RoHS 3 and REACH compliant construction ensures environmental safety and meets strict international regulatory requirements for industrial components.
• Versatile thickness range of 0.074-0.121" provides flexibility for various gasketing and spacing needs in assembly applications.
• Long-lasting performance in demanding applications thanks to the material's excellent fatigue resistance and structural integrity.

Professional Applications & Engineering Value

These 17-7 PH stainless steel SAE flat washers deliver critical engineering value in applications where corrosion resistance and mechanical strength are paramount. The precipitation-hardening stainless steel construction provides exceptional resistance to chemical exposure and atmospheric corrosion, making these flat washers ideal for marine equipment, chemical processing plants, and outdoor structural applications. The precise 5/8" screw size compatibility ensures proper load distribution across fastened joints, preventing surface damage and maintaining bolt tension in heavy-duty industrial assemblies. With their Rockwell C40 hardness, these washers maintain dimensional stability under extreme pressure and vibration, solving common failure points in machinery and equipment where standard washers would deform or corrode prematurely.

Specification Summary & Compliance

This SAE flat washer features precise dimensional specifications including 0.656" inner diameter, 1.312" outer diameter, and thickness ranging from 0.074" to 0.121". Manufactured to ASME B18.21.1 standards for dimensional consistency and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental safety requirements for industrial components. The inch system measurements ensure compatibility with standard 5/8" screws and North American industrial specifications.