S-93785A940 0.281" ID x 0.734" OD ASME B18.22.1 Plastic Washers

Key Features & Benefits at a Glance

• Exceptional thermal stability for reliable performance in extreme environments from -50°F to 550°F
• Superior chemical resistance from PEEK plastic material, preventing degradation in harsh industrial settings
• Precision dimensional fit with 0.281" ID and 0.734" OD ensuring secure seating for 1/4" screws
• Compliance with ASME B18.22.1 standards guaranteeing consistent quality and interchangeability
• RoHS 3 environmental compliance meeting strict regulatory requirements for hazardous substance restrictions
• Durable flat washer design providing reliable load distribution and vibration resistance
• Consistent thickness control (0.054-0.074") ensuring uniform pressure distribution across mating surfaces

Professional Applications & Engineering Value

This PEEK plastic flat washer delivers critical engineering solutions for demanding applications where temperature extremes and chemical exposure compromise conventional washers. The high-performance PEEK material maintains structural integrity across a remarkable -50°F to 550°F range, making it ideal for aerospace, automotive, and chemical processing equipment. Its chemical resistance prevents swelling or degradation when exposed to aggressive fluids, while the precise 1/4" screw compatibility ensures perfect fitment in inch-system assemblies. The flat washer configuration effectively distributes clamping force and prevents surface damage, particularly valuable in high-temperature industrial applications where metal washers might gall or corrode. This combination of thermal stability and dimensional precision addresses common failure points in extreme environment fastening systems.

Specification Summary & Compliance

This flat washer features precise inch-system dimensions with 0.281" inner diameter and 0.734" outer diameter, manufactured to ASME B18.22.1 specifications for dimensional consistency and performance reliability. The component is fully RoHS 3 (2015/863/EU) compliant, meeting current environmental regulations for hazardous substance restrictions. Designed specifically for 1/4" screw applications with controlled thickness between 0.054-0.074", this washer ensures proper fit and function in industrial assemblies requiring high-temperature capability and chemical resistance.