S-93785A910 0.281" ID x 0.5" OD ASME B18.22.1 Plastic Washers
Plastic Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional thermal stability for reliable performance across extreme temperatures from -50°F to 550°F
- Superior chemical resistance from PEEK plastic construction, ensuring longevity in harsh industrial environments
- Precision dimensional accuracy with 0.281" ID and 0.5" OD for perfect fit with 1/4" screws
- ASME B18.22.1 compliance guarantees consistent quality and interchangeability in industrial assemblies
- RoHS 3 environmental compliance meets strict regulatory standards for hazardous substance restrictions
- Consistent thickness control (0.056-0.071") ensures uniform load distribution and vibration resistance
- Lightweight non-conductive properties ideal for electrical and weight-sensitive applications
Professional Applications & Engineering Value
This PEEK plastic flat washer delivers critical engineering solutions for demanding industrial environments where temperature extremes and chemical exposure compromise conventional washers. The high-temperature resistance (550°F maximum) makes it indispensable for automotive, aerospace, and processing equipment applications, while the chemical-resistant PEEK material maintains integrity when exposed to aggressive solvents and fuels. The precise 0.281" ID and 0.5" OD dimensions ensure perfect alignment with 1/4" screw assemblies, preventing loosening under thermal cycling and vibration. Engineers specify this ASME B18.22.1 compliant washer for critical sealing, spacing, and load distribution tasks where material degradation would cause equipment failure.
Specification Summary & Compliance
This flat washer maintains dimensional precision per ASME B18.22.1 standards with inner diameter of 0.281", outer diameter of 0.5", and thickness range of 0.056-0.071". Manufactured from beige PEEK plastic in inch measurement system for 1/4" screw applications. Compliant with RoHS 3 (2015/863/EU) environmental directives and engineered for temperature service from -50°F to 550°F. The material properties provide consistent performance without hardness rating requirements for general industrial use.
