S-90377A111 0.078" ID x 0.188" 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
- Exceptional corrosion resistance from Black-Oxide 18-8 Stainless Steel, ideal for harsh environments and extending service life.
- Reliable load distribution with precise 0.078" ID and 0.188" OD, preventing surface damage and loosening under vibration.
- Optimized for No. 0 screw assemblies, ensuring perfect fit and enhanced fastening security in compact designs.
- Superior mechanical strength with Rockwell B68 hardness, resisting deformation under high stress and repeated use.
- Consistent performance in thin applications due to 0.010-0.030" thickness, maintaining integrity without adding bulk.
- Full regulatory compliance with RoHS 3 and REACH, meeting strict international standards for safe industrial use.
- Durable black-oxide surface providing added wear resistance and a professional, non-reflective finish.
Professional Applications & Engineering Value
These flat washers are engineered to address common industrial challenges such as galvanic corrosion, fastener loosening, and material fatigue. The Black-Oxide 18-8 Stainless Steel construction offers superior protection against rust and chemical exposure, making them ideal for demanding applications in electronics, precision instruments, and outdoor equipment. The precise inch system dimensions (0.078" ID x 0.188" OD) and controlled thickness ensure uniform stress distribution, reducing the risk of joint failure. By combining corrosion resistance with high hardness, these washers enhance assembly longevity and reliability in environments where moisture, temperature fluctuations, and dynamic loads are prevalent.
Specification Summary & Compliance
This flat washer features an inner diameter of 0.078", outer diameter of 0.188", and thickness range of 0.010-0.030", designed for No. 0 screw sizes in the inch measurement system. Manufactured from 18-8 Stainless Steel with a black-oxide finish, it maintains Rockwell B68 hardness for consistent performance. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial components.
