S-91525A145 0.531" ID x 1.5" 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 316 stainless steel construction, ideal for harsh chemical and marine environments
- Precise dimensional fit with 0.531" ID and 1.5" OD, ensuring secure seating and load distribution for 1/2" screws
- Durable, long-lasting performance with consistent thickness (0.052-0.072") for reliable vibration resistance and joint integrity
- Full RoHS 3 and REACH compliance guarantees environmental safety and unrestricted use in regulated industries
- Broad industrial compatibility as a reliable inch-system alternative to metric washers in global supply chains
- Reduced maintenance needs thanks to stainless steel's inherent resistance to rust and degradation
Professional Applications & Engineering Value
This 316 stainless steel flat washer delivers critical protection against galvanic and chemical corrosion in demanding applications such as marine hardware, chemical processing equipment, and coastal infrastructure. Its precision flat washer design with 0.531" inner diameter ensures perfect alignment with 1/2" fasteners, preventing bolt loosening under dynamic loads while the 1.5" outer diameter provides optimal surface distribution to protect soft materials from embedding. Manufactured from 316 stainless steel—containing molybdenum for enhanced pitting resistance—this washer maintains integrity in chloride-rich environments where standard stainless alloys fail, making it essential for offshore platforms, food processing machinery, and pharmaceutical installations requiring strict hygiene and durability standards.
Specification Summary & Compliance
This flat washer meets standard inch dimensional requirements with ID: 0.531", OD: 1.5", and Thickness: 0.052-0.072" for use with 1/2" screws. Manufactured from 316 stainless steel without hardness rating for general-purpose applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures adherence to environmental and safety standards for industrial use.
