S-93303A123 0.188" ID x 0.5" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Exceptional high-temperature resistance maintains performance in environments from 0°F to 450°F, preventing material degradation in demanding applications
• Superior vibration dampening from the composite Aramid Fabric/Buna-N Rubber construction reduces fastener loosening and extends equipment service life
• Reliable sealing properties create effective barriers against moisture and contaminants in industrial assemblies
• Precise dimensional compatibility with 0.188" ID and 0.5" OD ensures perfect fit for No. 8 screws in inch-system applications
• Durable composite material combines the strength of Aramid Fabric with the flexibility of Buna-N Rubber for optimal load distribution
• Full regulatory compliance with RoHS 3 and REACH standards ensures environmental safety and global market acceptance
• Color-coded identification with green finish allows for easy visual inspection and proper component selection

Professional Applications & Engineering Value

These Aramid Fabric/Buna-N Rubber composite washers deliver critical engineering solutions for high-temperature industrial applications where conventional washers fail. The unique material combination addresses common vibration-induced fastener failure while providing essential sealing capabilities in harsh environments. Engineered specifically for No. 8 screw assemblies, these flat washers maintain structural integrity under thermal cycling from 0°F to 450°F, making them ideal for automotive, aerospace, and heavy machinery applications where thermal stability and vibration resistance are paramount. The composite construction ensures consistent performance where temperature fluctuations would compromise standard washers.

Specification Summary & Compliance

This flat washer features precise inch-dimension specifications with 0.188" inner diameter and 0.5" outer diameter, designed specifically for No. 8 screws. The washer maintains dimensional stability across its 0.026-0.036" thickness range. Manufactured to meet rigorous industry standards, the product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant with current SVHC requirements. The temperature rating of 0°F to 450°F ensures reliable performance across extreme thermal conditions while maintaining material properties and sealing effectiveness.