S-91525A373 3.125" ID x 5" OD General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Optimal load distribution due to the large 5" outer diameter, reducing surface pressure and preventing damage to assembled materials.
• Precise fit for 3" screws with a 3.125" inner diameter, ensuring secure fastening and minimizing loosening under vibration.
• Enhanced durability from the 0.228-0.310" thickness range, providing reliable performance in heavy-duty applications.
• Compliance with environmental standards, meeting RoHS 3 and REACH regulations for safe, sustainable use in global markets.
• Versatile inch system compatibility, facilitating easy integration with existing machinery and standard fastener systems.
• Cost-effective maintenance by resisting rust and degradation, lowering replacement frequency and total cost of ownership.

Professional Applications & Engineering Value

This 316 stainless steel flat washer is engineered to address common industrial challenges, such as corrosion in marine, chemical, and outdoor settings. The high-grade material and robust design ensure reliable performance in heavy-duty applications, including structural bolting, machinery assembly, and pipeline systems. By utilizing a precise inner diameter of 3.125" for 3" screw size, it prevents misalignment and distributes loads evenly, reducing stress concentrations that can lead to joint failure. The flat washer surface finish and inch-based dimensions make it compatible with standard tools and fasteners, streamlining installation and maintenance processes for engineers and procurement teams.

Specification Summary & Compliance

This washer adheres to standard inch system measurements with an outer diameter of 5", inner diameter of 3.125", and thickness range of 0.228-0.310". It is manufactured from 316 stainless steel for consistent quality and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance in industrial applications.