S-90736A170 0.385" ID x 0.81" OD High-Pressure Bonded Sealing Washers For Screw Heads and Nuts

Key Features & Benefits at a Glance

• Superior sealing performance with a permanently bonded PVC plastic sealant that prevents fluid and gas leaks in demanding applications
• Exceptional corrosion resistance provided by 304 Stainless Steel construction, ensuring long-term reliability in harsh environments
• Wide operational temperature range from -60°F to 270°F, maintaining seal integrity and performance under extreme thermal conditions
• High-pressure capability handling up to 8500 psi for both fluids and gases, ideal for critical industrial and hydraulic systems
• Enhanced durability and deformation resistance due to a Rockwell B75 hardness rating, providing a long service life under heavy loads
• Environmental and regulatory compliance with RoHS 3 standards, ensuring safe use in various markets and applications
• Precision fit for 3/8" screws with consistent 0.385" ID and 0.81" OD dimensions, enabling easy installation and reliable performance

Professional Applications & Engineering Value

This metal bonded washer is engineered to solve critical sealing challenges in industrial applications where fluid and gas containment is paramount. The 304 Stainless Steel base provides excellent corrosion resistance, while the integrally bonded PVC plastic sealant creates a reliable, permanent barrier against leaks. It is specifically designed to perform in high-pressure environments up to 8500 psi and across a broad temperature range from -60°F to 270°F, making it ideal for use in hydraulic systems, pneumatic equipment, and machinery exposed to harsh operating conditions. The combination of a robust metal carrier and a resilient black PVC seal ensures that the washer maintains compression and seal integrity, preventing failure in critical 3/8" screw applications and reducing maintenance downtime.

Specification Summary & Compliance

This washer is manufactured to precise dimensional standards with an Inside Diameter (ID) of 0.385", Outside Diameter (OD) of 0.81", and Thickness of 0.077-0.087", ensuring a proper fit for 3/8" screw sizes in inch system applications. The 304 Stainless Steel material and Rockwell B75 hardness provide consistent mechanical properties and durability. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant, adhering to environmental regulations for hazardous substance restrictions.