S-96100A145 0.406" ID x 0.875" OD Plastic Washers

Key Features & Benefits at a Glance

• Superior electrical and thermal insulation from hard fiber construction prevents current leakage and heat transfer in sensitive assemblies
• Exceptional surface protection with Rockwell R70 hardness resists embedding and maintains bolt tension under vibration
• Precision dimensional fit with 0.406" ID and 0.875" OD ensures perfect alignment with 3/8" screws without binding or misalignment
• Reliable performance in elevated temperatures with 230°F maximum rating for industrial environments
• Consistent thickness control (0.088-0.098") provides uniform load distribution and prevents joint loosening
• Full regulatory compliance with RoHS 3 and REACH standards eliminates chemical restriction concerns in global supply chains
• Durable black fiber material offers excellent corrosion resistance without requiring additional coatings

Professional Applications & Engineering Value

This hard fiber flat washer delivers critical engineering solutions where electrical insulation, vibration damping, and chemical resistance are paramount. The Rockwell R70 hardness rating ensures the washer maintains its structural integrity under constant compression, preventing the common failure mode of fiber washers becoming crushed in high-pressure applications. With its precise 0.406" ID and 0.875" OD dimensions, this black fiber washer provides exact compatibility with 3/8" screws in electrical enclosures, plumbing fixtures, and machinery assemblies. The 230°F temperature resistance makes it ideal for applications near motors, transformers, and industrial equipment where thermal management is crucial. Engineers specify this industrial flat washer for its consistent performance in distributing load pressures while providing essential dielectric barriers in electrical systems.

Specification Summary & Compliance

This hard fiber flat washer meets precise dimensional requirements with 0.406" inner diameter, 0.875" outer diameter, and controlled thickness between 0.088-0.098". Manufactured to inch system standards for compatibility with 3/8" screws, the washer features Rockwell R70 hardness for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to international chemical substance restrictions for industrial safety and environmental protection.