S-90785A035 0.688" ID x 1.5" OD General Purpose Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance in harsh environments due to Nickel 400 alloy composition
• Precise dimensional fit with 0.688" ID and 1.5" OD ensuring reliable performance with 5/8" fasteners
• Superior mechanical strength from Rockwell C45 hardness for heavy-duty load distribution
• Long-term durability maintaining structural integrity under extreme pressure and temperature conditions
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
• Reduced maintenance requirements through excellent wear resistance in corrosive atmospheres
• Optimized sealing performance with controlled thickness variation (0.071-0.084") for consistent surface contact

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this Nickel 400 flat washer delivers exceptional performance in corrosive environments where standard washers fail. The Nickel 400 alloy composition provides outstanding resistance to seawater, chemical processing fluids, and high-temperature atmospheres, making it ideal for marine equipment, chemical processing plants, and aerospace assemblies. The precise 0.688" ID x 1.5" OD dimensions ensure perfect compatibility with 5/8" screw sizes, while the controlled thickness maintains uniform load distribution across mating surfaces. This heavy-duty flat washer solves critical engineering challenges by preventing galvanic corrosion, reducing fastener loosening due to vibration, and extending service life in aggressive operating conditions where reliability is paramount.

Specification Summary & Compliance

This flat washer conforms to inch system standards with precise internal diameter of 0.688" and outer diameter of 1.5", specifically designed for 5/8" screw size applications. Manufacturing specifications include material hardness of Rockwell C45 and thickness tolerance of 0.071-0.084". The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for international industrial markets.