S-90097A197 4.1 mm ID x 6.2 mm OD Insulating Washers

Key Features & Benefits at a Glance

• Superior electrical insulation prevents current leakage and short circuits in sensitive electronic assemblies
• Excellent vibration dampening properties reduce component wear and prevent fastener loosening in high-motion environments
• Wide temperature tolerance maintains structural integrity from -40°F to 180°F for reliable performance in extreme conditions
• Precision M4 sizing with 4.1mm ID ensures perfect fit and consistent alignment with standard metric fasteners
• Durable nylon construction with Rockwell R118 hardness provides long-lasting mechanical protection against abrasion and impact
• Chemical-resistant off-white nylon material withstands exposure to oils, solvents, and environmental elements
• Full regulatory compliance with RoHS 3 and REACH standards ensures safe use in global markets and sensitive applications

Professional Applications & Engineering Value

This M4 nylon sleeve washer delivers critical engineering solutions where electrical isolation and mechanical protection are paramount. The nylon plastic construction provides exceptional dielectric strength, making it ideal for electrical enclosures, PCB mounting, and electronic controls where current leakage must be prevented. The sleeve design extends protection along the bolt shaft, preventing galvanic corrosion between dissimilar metals and offering superior vibration resistance in automotive, aerospace, and industrial machinery applications. With its temperature range of -40°F to 180°F, this washer maintains dimensional stability in environments experiencing thermal cycling, while the Rockwell R118 hardness ensures durability against repeated assembly operations and mechanical stress.

Specification Summary & Compliance

This metric sleeve washer features precise dimensions with 4.1mm ID, 6.2mm OD, and 8.4mm overall height, designed for M4 screw size applications. Manufactured from nylon plastic with Rockwell R118 hardness rating, it maintains dimensional stability across its specified temperature range. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for international industrial applications.