S-92917A190 0.34" ID x 0.875" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from nickel-plated brass construction, ideal for harsh industrial environments
• Enhanced load distribution with precise 0.34" ID and 0.875" OD dimensions for 5/16" screw applications
• Consistent performance under pressure thanks to Rockwell B60 hardness rating
• Reliable thickness tolerance (0.052-0.072") ensures proper seating and vibration resistance
• Full regulatory compliance with RoHS 3 and REACH standards for safe industrial use
• Excellent electrical conductivity inherent to brass material for specialized applications
• Long-lasting surface protection that maintains integrity in demanding conditions

Professional Applications & Engineering Value

This nickel-plated brass flat washer delivers exceptional engineering value through its combination of material properties and precision manufacturing. The brass core provides natural corrosion resistance while the nickel plating adds an extra protective layer against oxidation and chemical exposure. This makes it particularly valuable in electrical applications where conductivity matters, as well as in marine, chemical processing, and outdoor equipment where corrosion resistance is critical. The precise dimensional control (0.34" ID specifically engineered for 5/16" screw size) ensures perfect fitment, preventing loosening under vibration and maintaining consistent clamping force. The Rockwell B60 hardness provides the ideal balance between durability and malleability, allowing the washer to conform to surfaces without cracking or deforming under load.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.34" inner diameter, 0.875" outer diameter, and thickness ranging from 0.052" to 0.072". Manufactured to precise dimensional standards for reliable performance with 5/16" fasteners. The washer meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance with current SVHC requirements as of June 2023, ensuring adherence to international environmental and safety regulations for industrial components.