S-90474A174 0.344" ID x 0.625" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality aluminum material, ideal for harsh environments and extending equipment lifespan
• Precise dimensional fit with 0.344" ID and 0.625" OD ensuring secure seating and even load distribution for 5/16" screws
• Consistent thickness control (0.056-0.071") for reliable performance and vibration resistance in assembled components
• Industry-standard compliance with ASME B18.21.1, guaranteeing dimensional accuracy and interchangeability
• Environmental regulation adherence through RoHS 3 and REACH compliance, safe for global industrial supply chains
• Lightweight durability of aluminum reduces overall assembly weight without sacrificing mechanical integrity
• Broad application versatility suitable for commercial machinery, electrical enclosures, and structural fastening needs

Professional Applications & Engineering Value

These aluminum flat washers deliver critical engineering solutions where corrosion resistance and weight reduction are paramount. The aluminum material inherently resists oxidation, making these washers ideal for outdoor equipment, marine applications, and chemical processing facilities where moisture exposure is constant. With precise 0.344" ID and 0.625" OD dimensions specifically engineered for 5/16" screws, they prevent joint loosening under vibration while distributing clamp load evenly across surfaces. The flat washer design according to ASME B18.21.1 standards ensures reliable performance in industrial assembly lines, electrical panel manufacturing, and automotive applications where consistent thickness (0.056-0.071") maintains bolt tension integrity.

Specification Summary & Compliance

This aluminum flat washer maintains precise dimensional tolerances per ASME B18.21.1 specifications with internal diameter of 0.344", outer diameter of 0.625", and thickness range of 0.056-0.071". The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations regarding chemical safety, making it suitable for international industrial markets and environmentally conscious manufacturing operations.