S-90474A105 0.406" ID x 0.734" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Precise dimensional fit with 0.406" ID and 0.734" OD ensures reliable alignment and load distribution for 3/8" screws, reducing assembly errors and improving joint integrity.
• Durable steel construction provides excellent resistance to wear and deformation under pressure, extending service life in demanding industrial environments.
• Consistent thickness range of 0.056-0.071" offers uniform surface contact, minimizing loosening and vibration-related failures in mechanical assemblies.
• ASME B18.21.1 compliance guarantees standardized quality and interchangeability, streamlining procurement and reducing compatibility risks in maintenance operations.
• RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence, supporting sustainable manufacturing practices and global supply chain requirements.
• Versatile industrial applicability across machinery, construction, and equipment assembly, thanks to robust material properties and inch-system compatibility.

Professional Applications & Engineering Value

Engineered for high-stress environments, these steel flat washers address common industrial challenges like surface damage, bolt loosening, and uneven load distribution. The precision inch dimensions (0.406" ID and 0.734" OD) ensure a snug fit for 3/8" screw applications, preventing misalignment in automotive, construction, and heavy machinery assemblies. Made from resilient steel material, they absorb shock and distribute clamping force effectively, reducing the risk of joint failure and maintenance downtime. Compliance with ASME B18.21.1 standards further enhances reliability, making these washers ideal for OEMs and MRO professionals seeking durable, RoHS and REACH compliant components that meet stringent industry benchmarks.

Specification Summary & Compliance

This flat washer features an ID of 0.406", OD of 0.734", and thickness range of 0.056-0.071", designed for 3/8" screw sizes with no hardness rating specified. It strictly adheres to the ASME B18.21.1 manufacturing standard, ensuring dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for environmental and industrial use without hazardous substances.