S-93785A400 0.19" ID x 0.44" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional thermal stability with a wide operating range from -50°F to 500°F, ensuring reliable performance in extreme temperature environments
• Superior chemical and wear resistance due to PEEK plastic construction, extending service life in harsh industrial applications
• Precision dimensional fit with 0.19" ID and 0.44" OD, providing optimal load distribution and vibration resistance for No. 8 screws
• Consistent mechanical performance maintained by Rockwell M103 hardness, preventing deformation under sustained pressure
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safety and environmental responsibility in global supply chains
• Lightweight non-conductive properties ideal for electrical insulation and weight-sensitive assemblies
• Corrosion-free performance in chemically aggressive environments where metal washers would degrade

Professional Applications & Engineering Value

Engineered for demanding industrial environments, this PEEK plastic flat washer solves critical challenges in high-temperature and chemically aggressive applications. The beige PEEK material maintains structural integrity across extreme thermal cycles from -50°F to 500°F, preventing the cracking and deformation common with standard polymers. Its 0.19" ID x 0.44" OD dimensions provide precise fitment for No. 8 screw assemblies, ensuring even load distribution while resisting galvanic corrosion in mixed-material constructions. The combination of Rockwell M103 hardness and inherent chemical resistance makes these inch system washers ideal for aerospace, semiconductor manufacturing, and medical equipment where reliability under thermal stress is paramount. Unlike metal alternatives, these high-performance washers eliminate electrical conductivity concerns while offering exceptional durability in continuous operation.

Specification Summary & Compliance

This precision flat washer features inch dimensions with 0.19" inner diameter and 0.44" outer diameter, specifically engineered for No. 8 screw applications. The manufacturing maintains tight thickness tolerances between 0.020-0.060" for consistent performance. Material specifications confirm PEEK plastic construction with Rockwell M103 hardness rating. Compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in international markets. The washer's thermal capabilities are verified for continuous operation from -50°F to 500°F maximum temperature range.