S-97725A261 0.125" ID x 0.281" OD Metal Sealing Washers
Metal Sealing 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
- Lightweight corrosion resistance with aluminum construction for extended service life in humid or chemical environments
- Precise dimensional fit with 0.125" ID and 0.281" OD ensures perfect alignment with No. 4 screws
- Optimal load distribution across surfaces with controlled thickness range of 0.024-0.038"
- Environmental compliance assurance meeting RoHS 3 and REACH standards for global project acceptance
- Non-magnetic properties ideal for electrical and sensitive electronic applications
- Cost-effective solution combining aluminum's durability with economical pricing
- Versatile compatibility with various inch-system fasteners and industrial hardware
Professional Applications & Engineering Value
This aluminum flat washer delivers critical engineering advantages where weight reduction and corrosion resistance are paramount. The 0.125" inner diameter provides precise mating with No. 4 screw sizes, preventing misalignment in assembly operations while the 0.281" outer diameter ensures adequate bearing surface for load distribution. Aluminum's natural oxide layer offers built-in protection against atmospheric corrosion, making these flat washers ideal for outdoor equipment, marine applications, and electronic enclosures where ferrous materials would pose contamination risks. The controlled thickness range of 0.024-0.038" accommodates minor surface variations while maintaining consistent clamping force in vibration-prone environments.
Specification Summary & Compliance
This inch-system flat washer features precision dimensions with 0.125" inner diameter and 0.281" outer diameter, engineered for No. 4 screw applications. Manufactured from aluminum with thickness tolerance of 0.024-0.038". Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in global markets. Suitable for industrial applications requiring non-ferrous, lightweight fastening solutions.
