S-90097A185 2.6 mm ID x 4.4 mm OD Insulating Washers

Key Features & Benefits at a Glance

• Exceptional Temperature Resilience: Maintains structural integrity across a broad -40°F to 180°F range, ideal for applications exposed to thermal cycling.
• Superior Electrical & Chemical Insulation: Made from Nylon Plastic, providing excellent isolation and corrosion resistance in harsh environments.
• Optimized for M2.5 Fasteners: Precision 2.6mm ID ensures a secure, snug fit, preventing loosening under vibration.
• Enhanced Load Distribution: 4.4mm OD and sleeve design help spread pressure, protecting sensitive surfaces from damage.
• Reliable Mechanical Strength: Rockwell R118 hardness offers consistent durability and wear resistance for long service life.
• Strict Environmental & Safety Compliance: Meets RoHS 3 and REACH standards, ensuring safety in regulated industries.
• Lightweight & Non-Corrosive: Nylon construction reduces overall weight and eliminates galvanic corrosion risks.

Professional Applications & Engineering Value

This M2.5 Nylon Plastic Sleeve Washer is engineered to address common industrial challenges such as vibration-induced fastener loosening, electrical short risks, and exposure to fluctuating temperatures. The off-white nylon material provides excellent dielectric properties, making it ideal for electrical assemblies, control panels, and PCB mounting where insulation is critical. Its sleeve design adds axial stability, distributing clamp load evenly to prevent damage to soft or finished surfaces. With a wide operating temperature range from -40°F to 180°F, it performs reliably in automotive, aerospace, and outdoor equipment applications, ensuring long-term fastener security without degradation.

Specification Summary & Compliance

This metric sleeve washer features precise dimensions: 2.6mm ID, 4.4mm OD, and 4.8mm overall height, with a sleeve OD of 3.1mm and sleeve height of 3.175mm. It is manufactured to standard metric sizing for M2.5 screw compatibility. The washer is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for use in various industrial and consumer products.