S-95395A104 0.125" ID x 0.25" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass material, ideal for humid or chemically aggressive environments.
• Excellent load distribution with a 0.25" outer diameter, protecting surfaces and preventing fastener embedment.
• Precision fit for No. 4 screws with a 0.125" inner diameter, ensuring secure fastening and reducing assembly errors.
• Enhanced durability and wear resistance due to Rockwell B60 hardness, extending service life in high-vibration applications.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring global supply chain acceptance and safety.
• Reliable performance in electrical applications thanks to brass's non-magnetic and conductive properties.
• Consistent dimensional accuracy with thickness ranging from 0.049" to 0.068", providing uniform pressure distribution.

Professional Applications & Engineering Value

This brass flat washer is engineered to address common industrial challenges such as galvanic corrosion, electrical interference, and mechanical wear. The copper alloy construction provides inherent corrosion resistance, making it suitable for marine, plumbing, and electronic assemblies where moisture or chemicals are present. Its Rockwell B60 hardness ensures it maintains shape under load, preventing deformation in high-stress applications like machinery and automotive components. The precise 0.125" ID and 0.25" OD dimensions guarantee a perfect fit for No. 4 screw size fasteners, reducing installation time and improving joint integrity. Additionally, the RoHS and REACH compliance ensures it meets stringent environmental standards, supporting sustainable manufacturing practices without compromising on durability or performance in demanding industrial washers applications.

Specification Summary & Compliance

This washer features an inner diameter of 0.125", outer diameter of 0.25", and thickness range of 0.049" to 0.068", designed for use with No. 4 screw size in inch measurement systems. It complies with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloys and is REACH (EC 1907/2006) compliant as of January 17, 2023, covering 233 SVHCs. The material hardness is specified as Rockwell B60, ensuring consistent quality and performance in various industrial settings.