S-91525A129 0.281" ID x 2" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh chemical and marine environments thanks to 316 stainless steel construction
• Excellent load distribution across a large surface area with a 2" outer diameter, protecting components from damage
• Precise fit for 1/4" fasteners with a 0.281" inner diameter, ensuring secure and stable assembly
• Consistent performance and spacing maintained by a uniform thickness ranging from 0.052" to 0.072"
• Guaranteed environmental compliance with RoHS 3 and REACH regulations for safe, sustainable use
• Long-term reliability in demanding industrial settings due to the inherent durability of stainless steel
• Broad compatibility with inch-system components, simplifying sourcing and inventory for various projects

Professional Applications & Engineering Value

This 316 stainless steel flat washer is engineered to address critical challenges in corrosive and high-stress environments. Its high molybdenum content provides exceptional resistance to chlorides and industrial chemicals, preventing premature failure in applications like chemical processing, marine equipment, and offshore structures. The large 2" OD effectively distributes clamping force and reduces surface pressure, protecting soft materials and painted surfaces from indentation or cracking. With precise 1/4" ID sizing, it ensures a snug fit on standard fasteners, minimizing movement and maintaining joint integrity in vibrating machinery or structural assemblies. This combination of material excellence and dimensional accuracy delivers reliable sealing and load management, extending the service life of connected components in demanding industrial applications.

Specification Summary & Compliance

This flat washer conforms to standard inch system dimensions with an inner diameter of 0.281", outer diameter of 2", and thickness between 0.052" and 0.072", designed for use with 1/4" screw sizes. The product is manufactured from 316 stainless steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to strict environmental and safety standards for hazardous substances.