S-98019A519 0.812" ID x 1.469" OD MS15795-822; NASM15795; ASME B18.21.1 Mil. Spec. Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance through passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Exceptional load distribution with precise 0.812" ID and 1.469" OD dimensions, preventing surface damage and fastener loosening
• Optimized thickness range (0.108-0.160") provides perfect compression control and vibration resistance for 3/4" screw applications
• Enhanced mechanical strength with Rockwell B70 hardness, maintaining structural integrity under heavy loads
• Rigorous quality assurance through compliance with MS15795-822, NASM15795, and ASME B18.21.1 standards
• Environmental compliance with RoHS 3 and REACH regulations, ensuring safe use across global markets
• Precision manufacturing guarantees consistent performance and perfect fit in inch-system assemblies

Professional Applications & Engineering Value

These passivated 18-8 stainless steel flat washers deliver critical engineering solutions where corrosion resistance and mechanical reliability are paramount. The precise dimensional control (0.812" ID x 1.469" OD) ensures perfect alignment with 3/4" fasteners, eliminating misalignment issues in industrial equipment assembly. The Rockwell B70 hardness provides exceptional resistance to deformation under sustained loads, making these flat washers ideal for heavy machinery, marine applications, and chemical processing equipment where environmental factors would compromise standard washers. The passivation surface treatment creates an invisible protective layer that significantly enhances the natural corrosion resistance of 18-8 stainless steel, extending service life in demanding conditions while maintaining electrical conductivity for grounding applications.

Specification Summary & Compliance

Manufactured to exacting inch system dimensions with inner diameter of 0.812", outer diameter of 1.469", and thickness ranging 0.108-0.160". These flat washers conform to MS15795-822, NASM15795, and ASME B18.21.1 specifications, ensuring interchangeability and performance consistency. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC requirements as of June 2023. The 18-8 stainless steel material with passivation treatment meets aerospace, military, and industrial standards for corrosion resistance and mechanical properties.