S-90474A123 0.938" ID x 1.469" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc yellow-chromate plating, extending service life in harsh environments
• High-strength performance backed by Grade 8 classification, ensuring reliable load distribution and joint integrity
• Superior hardness at Rockwell C38, providing excellent resistance to deformation under heavy loads
• Precise dimensional fit with 7/8" screw size compatibility, reducing installation errors and improving assembly efficiency
• Industry-standard compliance with ASME B18.21.1, guaranteeing consistent quality and interchangeability
• Environmental responsibility through RoHS 3 and REACH compliance, meeting strict regulatory requirements
• Optimized load-bearing surface with 1.469" OD and 0.938" ID, effectively preventing surface damage and bolt loosening

Professional Applications & Engineering Value

This Grade 8 flat washer delivers critical engineering solutions for heavy machinery, structural steel connections, and industrial equipment assemblies. The zinc yellow-chromate plated steel construction combats oxidation and chemical exposure in demanding environments like manufacturing plants and outdoor installations, significantly reducing maintenance frequency. With Rockwell C38 hardness and precise inch-system dimensions (0.938" ID, 1.469" OD), it maintains clamping force under extreme vibration and load cycles, preventing joint failure in 7/8" fastener applications. Engineers specify this washer for its proven performance in distributing pressure across wider surfaces, protecting sensitive materials from galling while ensuring long-term reliability in ASME B18.21.1 compliant systems.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 standards with inch-system precision dimensions: 0.938" ID, 1.469" OD, and thickness range 0.090-0.112". The washer maintains Grade 8 strength classification with Rockwell C38 hardness verification. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and global market acceptability for industrial procurement.