S-90474A167 0.469" ID x 0.875" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Enhanced corrosion resistance from the black-oxide steel finish, extending service life in humid or demanding industrial environments.
• Precise dimensional fit with 0.469" ID and 0.875" OD, ensuring reliable alignment and load distribution for 7/16" fasteners.
• Consistent thickness control (0.056-0.071") provides uniform pressure distribution, minimizing bolt loosening and joint failure.
• Compliance with ASME B18.21.1 standards guarantees interchangeability and performance reliability in mechanical assemblies.
• RoHS 3 and REACH compliance ensures safe use in regulated industries, free from hazardous substances.
• Durable steel construction offers excellent strength for general-purpose and heavy-duty applications.
• Broad industrial compatibility with inch-system machinery, simplifying inventory for maintenance and production lines.

Professional Applications & Engineering Value

These black-oxide steel flat washers are engineered to address common challenges in industrial settings, such as corrosion-induced degradation and inconsistent load bearing. The black-oxide surface treatment provides a protective layer that resists rust and wear, making them ideal for outdoor equipment, automotive assemblies, and machinery exposed to moisture. With precise inch dimensions (0.469" ID x 0.875" OD) tailored for 7/16" screw sizes, they ensure a snug fit that prevents misalignment and distributes clamping force evenly, reducing the risk of fastener fatigue. By meeting ASME B18.21.1 specifications, these washers deliver reliable performance in high-vibration environments, supporting long-term operational integrity and minimizing maintenance downtime for B2B clients.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.469", outer diameter of 0.875", and thickness range of 0.056-0.071", designed for use with 7/16" screws in inch-based systems. It conforms to ASME B18.21.1 for dimensional accuracy and performance, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial supply chains.