S-90474A132 0.469" ID x 1.469" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior load distribution with 1.469" OD and 0.469" ID for 7/16" screws, preventing surface damage and maintaining joint integrity
• Exceptional corrosion resistance from zinc yellow-chromate plating, ideal for harsh industrial environments
• High-strength performance with Grade 8 classification and Rockwell C38 hardness for demanding applications
• Precise dimensional stability with 0.090-0.112" thickness ensuring consistent spacing and reliable fastening
• Industry-standard compliance meeting ASME B18.21.1 specifications for guaranteed interchangeability
• Environmental responsibility with RoHS 3 and REACH compliance, safe for regulated industries
• Enhanced durability through hardened steel construction, resisting deformation under high stress

Professional Applications & Engineering Value

These Grade 8 flat washers deliver critical engineering solutions where vibration resistance and load distribution are paramount. The zinc yellow-chromate plated steel construction provides exceptional barrier protection against corrosion, significantly extending service life in outdoor, marine, and chemical exposure applications. With Rockwell C38 hardness, these washers maintain their structural integrity under heavy bolt preloads, preventing embedding and loosening in dynamic load conditions. The precise 7/16" screw size compatibility and ASME B18.21.1 compliance ensure perfect fit and reliable performance in heavy machinery, structural steel connections, and industrial equipment where fastener failure is not an option.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.469" inner diameter, 1.469" outer diameter, and thickness range of 0.090-0.112". Manufactured to ASME B18.21.1 standards for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no substances of very high concern above threshold limits. Grade 8 classification and Rockwell C38 hardness verify the high-strength capabilities suitable for critical fastener applications.