S-92217A490 0.344" ID x 0.625" OD ASME B18.21.1 ASME Washers
ASME Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
- Precise dimensional fit with 0.344" ID and 0.625" OD, providing optimal load distribution for 5/16" fasteners.
- Enhanced durability through consistent 0.056-0.071" thickness, maintaining structural integrity under pressure.
- Industry-standard compliance with ASME B18.21.1, guaranteeing interchangeability and performance consistency.
- Environmental regulation adherence via RoHS 3 and REACH compliance, safe for regulated industrial applications.
- Versatile industrial suitability for machinery, equipment assembly, and outdoor installations requiring reliable fastening.
- Cost-effective maintenance reduction due to stainless steel's resistance to rust and degradation.
Professional Applications & Engineering Value
These 5/16" flat washers deliver critical engineering value by addressing common industrial fastening challenges. The 18-8 stainless steel material inherently resists oxidation and chemical corrosion, making these flat washers ideal for applications exposed to moisture, chemicals, or outdoor elements. Their precise 0.344" ID ensures secure seating on 5/16" bolts, while the 0.625" OD provides ample bearing surface to prevent embedment and distribute clamping forces evenly. This combination solves issues of joint loosening, surface damage, and premature fastener failure in industrial washers applications across manufacturing, construction, and marine equipment. The consistent 0.056-0.071" thickness maintains uniform pressure distribution, crucial for vibration-resistant assemblies.
Specification Summary & Compliance
This flat washer maintains dimensional accuracy per ASME B18.21.1 specifications with inner diameter of 0.344", outer diameter of 0.625", and thickness range of 0.056-0.071". Manufactured from 18-8 stainless steel in inch measurements, it fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability for industrial procurement.
