S-90377A195 0.344" ID x 0.75" OD Oversized Washers
Oversized 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 Black-Oxide 18-8 Stainless Steel construction, ideal for harsh environments and extending service life
- Precise dimensional fit with 0.344" ID and 0.75" OD, ensuring secure seating and uniform load distribution for 5/16" screws
- Enhanced durability with a thickness range of 0.170-0.200", providing reliable performance under heavy-duty mechanical stress
- Compliance with stringent regulations including RoHS 3 and REACH, ensuring safe use in industrial and international markets
- Versatile inch system compatibility for seamless integration with existing machinery and standard 5/16" fasteners
- Optimal surface protection through the black-oxide finish, reducing galling and offering a professional appearance
Professional Applications & Engineering Value
This 5/16" flat washer is engineered to address common industrial challenges such as fastener loosening, surface damage, and corrosion-induced failure. The Black-Oxide 18-8 Stainless Steel material provides excellent resistance to rust and chemical exposure, making it suitable for demanding sectors like marine equipment, food processing, and outdoor machinery. Its precise inner diameter of 0.344" and outer diameter of 0.75" ensure a snug fit, minimizing vibration and distributing clamp load evenly to prevent joint fatigue. By utilizing this corrosion-resistant washer, engineers can enhance assembly longevity, reduce maintenance costs, and comply with environmental standards without sacrificing performance.
Specification Summary & Compliance
This washer features an ID of 0.344", OD of 0.75", and thickness ranging from 0.170" to 0.200", designed for use with 5/16" screw sizes in inch measurement systems. It is manufactured from 18-8 Stainless Steel with a black-oxide surface treatment for added protection. The product conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances and safe for industrial applications.
