S-90785A036 0.812" ID x 1.75" OD General Purpose Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 400 Nickel material, ideal for harsh industrial environments and extending service life
• Superior mechanical strength with Rockwell C45 hardness, preventing deformation under high-load conditions
• Precise dimensional fit (0.812" ID, 1.75" OD) ensures reliable seating and uniform load distribution for 3/4" screws
• Consistent thickness control (0.085-0.102") provides predictable compression and vibration resistance in assemblies
• Full regulatory compliance with RoHS 3 and REACH standards, guaranteeing safe use in global markets
• Optimized for inch-system applications, facilitating easy integration with existing North American equipment and fasteners
• Enhanced durability against galling and seizing, reducing maintenance frequency in high-temperature operations

Professional Applications & Engineering Value

This 400 Nickel flat washer delivers critical performance advantages in demanding applications where corrosion resistance and mechanical reliability are paramount. The nickel alloy composition provides excellent protection against chemical degradation in marine, chemical processing, and offshore equipment. With its precision dimensions (0.812" ID matching 3/4" screw size) and controlled thickness variation, it ensures uniform clamping force distribution while preventing stress concentration points. The Rockwell C45 hardness maintains structural integrity under repeated thermal cycling and vibrational loads, making it particularly valuable for heavy-duty industrial fastening in power generation, valve assemblies, and processing machinery where fastener failure is not an option.

Specification Summary & Compliance

Manufactured to standard inch system dimensions with ID 0.812", OD 1.75", and thickness range 0.085-0.102" for consistent performance with 3/4" fasteners. The 400 Nickel material provides Rockwell C45 hardness for reliable mechanical properties. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and global market acceptance. This flat washer meets industrial standards for corrosion-resistant precision washers in inch-system applications.