S-95630A848 0.531" ID x 1.75" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional thermal stability withstanding temperatures up to 500°F for reliable performance in high-heat industrial environments
• Superior chemical resistance thanks to PTFE material composition, preventing degradation from corrosive substances
• Consistent dimensional accuracy with precise 0.531" ID and 1.75" OD ensuring perfect fit for 1/2" fasteners
• Optimal hardness balance at Durometer 55D providing both durability and effective load distribution
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global market acceptance
• Minimal thickness variation (0.027-0.035") ensuring uniform pressure distribution and sealing performance
• Non-contaminating white material ideal for cleanroom and sensitive applications where purity is critical

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these PTFE plastic flat washers deliver exceptional performance where conventional metal washers fail. The chemical-resistant properties of PTFE material prevent corrosion and degradation when exposed to aggressive chemicals, solvents, and cleaning agents. With a maximum temperature rating of 500°F, these washers maintain structural integrity in high-heat applications including thermal processing equipment, automotive systems, and industrial machinery. The Durometer 55D hardness provides the perfect balance between flexibility and load-bearing capacity, ensuring effective vibration dampening and surface protection without compromising fastener tension. These flat washers are particularly valuable in food processing, pharmaceutical, and semiconductor industries where material purity and regulatory compliance are paramount.

Specification Summary & Compliance

This PTFE plastic flat washer features precise inch system dimensions with 0.531" inner diameter and 1.75" outer diameter, specifically designed for 1/2" screw size applications. The washer maintains consistent thickness between 0.027-0.035" for uniform performance. Manufactured to meet industry standards for flat washers, the product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant with current substance restrictions as of June 14, 2023. The white PTFE material with Durometer 55D hardness ensures reliable performance across specified temperature ranges while maintaining dimensional stability under load conditions.