S-91950A031 0.406" ID x 0.812" OD SAE Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 316 stainless steel construction, ideal for marine and chemical environments
• Precise dimensional accuracy with 0.406" ID and 0.812" OD ensuring perfect fit for 3/8" screw applications
• Enhanced load distribution through SAE-standard flat washer design, reducing surface pressure and material stress
• Regulatory compliance assurance with RoHS 3 and REACH standards for global industrial applications
• Durable performance in harsh conditions without galvanic corrosion or degradation concerns
• Interchangeable compatibility with inch-system fasteners and standard industrial equipment

Professional Applications & Engineering Value

This 316 stainless steel SAE flat washer delivers critical protection against corrosive degradation in demanding environments. The marine-grade composition containing molybdenum resists pitting from chlorides and acidic exposure, while the precise inch-dimension flat washer profile maintains uniform clamping force distribution. Engineers specify these washers for marine hardware, chemical processing equipment, and coastal infrastructure where failure from corrosion would compromise structural integrity. The SAE designation ensures reliable performance in automotive and heavy machinery applications, preventing loosening from vibration and thermal cycling. By combining corrosion-resistant properties with standardized dimensions, this washer solves critical fastening challenges in aggressive operational environments.

Specification Summary & Compliance

Manufactured to SAE standards with inch-system dimensions: 0.406" inner diameter, 0.812" outer diameter, and thickness ranging 0.051-0.080" for 3/8" screw applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates. The 316 stainless steel construction provides inherent corrosion resistance without additional plating or coating requirements.