S-90231A112 0.109" ID x 0.25" OD SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from brass construction for long-lasting performance in humid or corrosive environments
• Precise dimensional fit with 0.109" ID ensuring secure seating on No. 3 screws without slippage
• Optimal load distribution through 0.25" OD design that protects surfaces from damage during tightening
• Consistent thickness tolerance (0.025-0.040") for reliable spacing and vibration resistance in assemblies
• SAE standard compliance guaranteeing interchangeability and compatibility with inch-based fastening systems
• Environmental regulation compliance with REACH standards for safe industrial applications worldwide
• Excellent electrical conductivity making these washers ideal for electrical and electronic assemblies

Professional Applications & Engineering Value

This brass SAE flat washer delivers critical engineering advantages where corrosion resistance and electrical conductivity are paramount. The precision brass construction prevents galvanic corrosion when used with compatible metals, while the SAE inch dimensions ensure perfect compatibility with No. 3 screw applications in machinery, electrical enclosures, and precision instruments. The flat washer design effectively distributes clamping force across a wider surface area, preventing damage to soft materials and maintaining joint integrity under vibration. These REACH compliant washers meet stringent industrial standards for chemical safety, making them suitable for automotive, marine, and electrical industries where environmental regulations and material performance are critical considerations.

Specification Summary & Compliance

This SAE flat washer features precise inch dimensions with 0.109" inner diameter, 0.25" outer diameter, and thickness ranging 0.025-0.040" for No. 3 screw applications. Manufactured from brass material for corrosion resistance and electrical applications. The product is REACH (EC 1907/2006) compliant as of 06/14/2023, meeting current substance restriction requirements for industrial use across global markets. SAE standardization ensures consistent performance and interchangeability within inch-based fastening systems.