S-98019A360 0.312" ID x 0.734" OD MS15795-811; NASM15795; ASME B18.21.1 Mil. Spec. Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction for extended service life in harsh environments
• Exceptional load distribution through precise 0.312" ID and 0.734" OD dimensions, preventing surface damage and joint loosening
• Optimized hardness performance with Rockwell B70 rating ensuring dimensional stability under pressure
• Reliable fit and function designed specifically for 1/4" screw sizes with consistent 0.051-0.080" thickness
• Military and industrial compliance meeting MS15795-811, NASM15795, and ASME B18.21.1 specifications
• Environmental safety assurance through RoHS 3 and REACH compliance for sustainable operations
• Reduced maintenance requirements thanks to durable material properties and surface treatment

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 precision flat washer design with controlled 0.312" internal diameter and 0.734" outer diameter ensures optimal load distribution across fastened joints, preventing surface indentation and maintaining clamp force integrity in vibration-prone applications. The Rockwell B70 hardness provides exceptional resistance to deformation under heavy static and dynamic loads, while the passivated surface treatment creates a protective oxide layer that significantly enhances corrosion resistance in industrial environments exposed to moisture, chemicals, and temperature variations. These industrial washers are engineered to meet the rigorous demands of aerospace, marine, chemical processing, and heavy machinery applications where fastener failure is not an option.

Specification Summary & Compliance

Manufactured to exacting dimensional standards with 0.312" ID, 0.734" OD, and 0.051-0.080" thickness for precise fit with 1/4" screw sizes. Complies with MS15795-811, NASM15795, and ASME B18.21.1 specifications for dimensional accuracy and performance requirements. Meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations regarding substance restrictions, ensuring environmental safety and regulatory adherence for global industrial applications.