S-92503A220 0.338" ID x 1.09" OD MS14151-4 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 durability with Rockwell B68 hardness, providing excellent wear resistance and load distribution
• Precise dimensional accuracy with 0.338" ID and 1.09" OD, ensuring perfect fit for 5/16" fasteners
• Consistent performance meeting MS14151-4 specifications for reliable industrial applications
• Environmental compliance with RoHS 3 and REACH standards, making them suitable for regulated industries
• Optimized thickness range (0.017-0.023") providing ideal compression and surface protection
• Versatile inch system compatibility for seamless integration with existing industrial equipment and assemblies

Professional Applications & Engineering Value

This 5/16" flat washer delivers exceptional engineering value through its passivated 18-8 stainless steel composition and precision manufacturing. The MS14151-4 compliant design ensures reliable performance in demanding applications where corrosion resistance and dimensional stability are critical. The Rockwell B68 hardness provides superior surface protection against galling and deformation, while the precise 0.338" ID and 1.09" OD dimensions guarantee perfect alignment with 5/16" fasteners. These industrial flat washers are engineered to prevent loosening under vibration and distribute load evenly, making them ideal for machinery, automotive, and marine applications where corrosion resistant washers are essential for long-term structural integrity.

Specification Summary & Compliance

This precision flat washer features exact dimensional specifications including 0.338" inner diameter, 1.09" outer diameter, and thickness range of 0.017-0.023" designed for 5/16" screw size applications. Manufactured to MS14151-4 specifications with Rockwell B68 hardness rating, the washer maintains consistent performance across industrial environments. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for global industrial applications.