S-91860A043 0.125" ID x 0.312" OD General Purpose Washers
General Purpose 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 17-7 PH stainless steel, ideal for harsh industrial environments and extending service life.
- Excellent mechanical strength with Rockwell C40 hardness, providing reliable load distribution and preventing fastener loosening.
- Precise dimensional fit with 0.125" ID and 0.312" OD, ensuring compatibility with No. 4 screws and reducing assembly errors.
- Enhanced durability under thermal and mechanical stress, maintaining performance in demanding applications.
- Compliance with global standards including RoHS 3 and REACH, ensuring safety and environmental responsibility for B2B procurement.
- Optimized for inch-system applications, facilitating easy integration into existing designs and reducing conversion needs.
- Consistent thickness (0.024-0.038") for uniform pressure distribution, minimizing wear and improving joint integrity.
Professional Applications & Engineering Value
This 17-7 PH stainless steel flat washer is engineered to address common industrial challenges, such as corrosion-induced failure and mechanical fatigue. Its high-strength material grade and Rockwell C40 hardness provide exceptional resistance to deformation under load, making it suitable for precision assemblies in aerospace, automotive, and electronics. The flat washer design ensures even load distribution, preventing surface damage and extending the life of No. 4 screw fastenings. With superior corrosion resistance, it performs reliably in humid or chemical-exposed settings, reducing maintenance costs and downtime. Ideal for industrial washers applications, this component enhances structural stability and supports long-term operational efficiency.
Specification Summary & Compliance
This washer features precise dimensions: 0.125" inner diameter, 0.312" outer diameter, and thickness ranging from 0.024" to 0.038", designed for No. 4 screw size in the inch system. It adheres to standard manufacturing tolerances and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety criteria for industrial use.
