S-93785A950 0.344" ID x 0.875" 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 in extreme environments from -50°F to 550°F
- Superior chemical resistance thanks to PEEK plastic construction, ideal for harsh industrial applications
- Precise dimensional fit with 0.344" ID and 0.875" OD ensuring proper alignment for 5/16" screws
- ASME B18.22.1 compliance guarantees consistent quality and interchangeability in mechanical assemblies
- RoHS 3 environmental compliance meets strict regulatory standards for hazardous substance restrictions
- Consistent thickness control between 0.054-0.074" provides uniform load distribution and vibration resistance
- Lightweight non-conductive properties prevent galvanic corrosion and electrical interference in sensitive equipment
Professional Applications & Engineering Value
This PEEK plastic flat washer delivers critical engineering solutions where traditional metal washers fail. The high-temperature capability to 550°F makes it indispensable for aerospace, automotive, and chemical processing equipment where thermal cycling would degrade conventional materials. Its chemical resistance protects against corrosion in aggressive environments containing fuels, solvents, and cleaning agents. The ASME B18.22.1 specification ensures precise dimensional tolerances for reliable fit with 5/16" screw applications, eliminating installation issues in automated assembly lines. The beige color provides visual identification in complex assemblies, while the flat washer design maintains bolt tension and prevents surface damage to expensive components.
Specification Summary & Compliance
Manufactured to ASME B18.22.1 standards with inch system dimensions: 0.344" ID, 0.875" OD, and thickness range of 0.054-0.074". The PEEK plastic construction provides consistent performance across the full temperature range from -50°F to 550°F. Compliant with RoHS 3 (2015/863/EU) environmental directives, ensuring restriction of hazardous substances. Designed specifically for 5/16" screw size applications with standard flat washer configuration for optimal load distribution and surface protection.
