S-98019A232 0.317" ID x 0.525" OD MS51496-P78 Mil. Spec. Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Exceptional dimensional precision with 0.317" ID and 0.525" OD for perfect fit with 5/16" fasteners
• Optimized load distribution through consistent 0.029-0.032" thickness, preventing surface damage and joint failure
• Enhanced mechanical strength with Rockwell C20 hardness, maintaining structural integrity under pressure
• Guaranteed compliance with MS51496-P78 military specification for consistent quality and performance
• Environmental responsibility with full RoHS 3 and REACH compliance, meeting global regulatory standards
• Reduced maintenance costs through durable construction that withstands repeated use and exposure

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 5/16" flat washers provide critical protection against corrosion and mechanical stress. The passivated 18-8 stainless steel construction creates a protective oxide layer that significantly enhances resistance to rust and chemical degradation, making them ideal for marine, chemical processing, and outdoor applications. Their precise dimensions ensure uniform load distribution across mating surfaces, preventing fastener loosening and material deformation. The MS51496-P78 compliance guarantees consistent performance in military and aerospace applications where reliability is paramount. These industrial washers serve as essential components in assembly systems requiring corrosion-resistant fastening solutions that maintain integrity through thermal cycling and environmental exposure.

Specification Summary & Compliance

This flat washer features precision inch system dimensions with 0.317" inner diameter, 0.525" outer diameter, and controlled thickness between 0.029-0.032". Manufactured to meet MS51496-P78 military specification requirements with Rockwell C20 hardness for consistent mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates, ensuring environmental safety and regulatory acceptance for global industrial applications.