S-93303A127 1.312" ID x 3" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Exceptional high-temperature performance withstands up to 450°F (232°C), ensuring reliable sealing and load distribution in demanding thermal environments
• Superior material durability with Aramid Fabric/Buna-N Rubber composite construction resists compression set, wear, and chemical exposure for extended service life
• Precision dimensional fit with 1.312" ID specifically engineered for 1 1/4" screws, preventing loosening and maintaining assembly integrity
• Optimized load distribution through 3" OD design reduces surface pressure and prevents damage to connected materials
• Consistent performance thickness between 0.115-0.135" ensures uniform compression and reliable sealing capabilities
• Full regulatory compliance with RoHS 3 and REACH standards, meeting stringent industrial environmental and safety requirements
• High-visibility green color allows for easy identification and quality control during installation and maintenance procedures

Professional Applications & Engineering Value

This high-temperature flat washer delivers critical engineering solutions for industrial applications where thermal stability and chemical resistance are paramount. The unique Aramid Fabric/Buna-N Rubber composite construction addresses common failure points in extreme environments by maintaining sealing integrity and load distribution capabilities even at continuous 450°F operation. The precision inch dimensions (1.312" ID x 3" OD) ensure perfect compatibility with 1 1/4" fasteners while the controlled thickness range provides consistent compression performance. These industrial washers are engineered for demanding applications including heavy machinery, automotive systems, and industrial processing equipment where thermal cycling, vibration, and chemical exposure would compromise standard washers. The composite material's resilience prevents deformation under load while the high-temperature resistance eliminates the need for frequent replacements in thermal applications.

Specification Summary & Compliance

This flat washer features precise inch system dimensions with 1.312" internal diameter, 3" outer diameter, and thickness ranging from 0.115" to 0.135" for consistent performance with 1 1/4" screws. The product maintains dimensional stability across its operational temperature range of 0°F to 450°F. Manufacturing and material compliance includes full adherence to RoHS 3 (2015/863/EU) standards and REACH (EC 1907/2006) regulations (updated 06/14/2023, 235 SVHC), ensuring environmental safety and regulatory acceptance for industrial applications worldwide.