S-92503A120 0.385" ID x 0.76" OD MS16212-12 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 0.385" ID and 0.76" OD dimensions, preventing surface damage and joint failure
• Reliable hardness performance with Rockwell B68 rating ensuring consistent performance under pressure and vibration
• Military specification compliance with MS16212-12 standards guaranteeing precise dimensional accuracy and quality assurance
• Environmental regulation compliance meeting RoHS 3 and REACH requirements for safe use in regulated industries
• Optimized thickness range (0.051-0.080") providing perfect fit and uniform clamping force for 5/16" fasteners
• Durable surface protection through passivation treatment enhancing corrosion resistance without compromising dimensional integrity

Professional Applications & Engineering Value

This 5/16" flat washer delivers critical engineering value through its passivated 18-8 stainless steel composition, specifically engineered to combat corrosion in demanding industrial environments. The precise MS16212-12 specification ensures dimensional consistency that prevents loosening under vibration and maintains proper joint integrity. With its Rockwell B68 hardness, the washer provides reliable performance in high-stress applications while the optimized inner and outer diameters (0.385" ID, 0.76" OD) distribute loads effectively across mating surfaces. Ideal for industrial machinery, marine equipment, and chemical processing applications, this inch flat washer solves common fastener failure points through superior material selection and precision manufacturing, offering long-term reliability where corrosion resistance and dimensional accuracy are paramount.

Specification Summary & Compliance

This flat washer meets MS16212-12 military specifications with precise dimensional tolerances including 0.385" inner diameter, 0.76" outer diameter, and thickness range of 0.051-0.080". Manufactured from 18-8 stainless steel with passivated surface treatment, the component achieves Rockwell B68 hardness for consistent mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while maintaining the highest quality standards for 5/16" fastener applications.