S-95647A301 0.156" ID x 0.312" OD ASME B18.21.1 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
- Superior corrosion and chemical resistance from Delrin® Acetal Plastic, ideal for harsh environments without risk of rust or degradation.
- Excellent dimensional stability with precise 0.156" ID and 0.312" OD, ensuring a perfect fit for No. 6 screws and reliable load distribution.
- Wide operating temperature range from -40°F to 180°F, maintaining performance in both freezing and elevated temperature conditions.
- Lightweight and low friction properties reduce wear on surfaces and minimize galvanic corrosion when used with dissimilar metals.
- RoHS 3 compliance ensures environmentally safe use, meeting strict international regulations for hazardous substances.
- ASME B18.21.1 standard conformity guarantees consistent quality, interchangeability, and reliability in industrial applications.
- Cost-effective alternative to metal washers, offering excellent durability and electrical insulation without the weight or conductivity issues.
Professional Applications & Engineering Value
These Delrin® Acetal Plastic flat washers provide critical solutions in applications where metal fasteners fail. The acetal plastic material inherently resists moisture, chemicals, and abrasion, preventing seizing and corrosion in electrical assemblies, food processing equipment, and marine environments. The precise 0.156" ID and 0.312" OD dimensions, tailored for No. 6 screws, ensure uniform clamping force and vibration resistance, reducing maintenance needs. With a temperature resistance from -40°F to 180°F, they perform reliably in outdoor, automotive, and HVAC systems, offering a durable, non-conductive spacer that meets ASME B18.21.1 specifications for consistent performance.
Specification Summary & Compliance
This flat washer features an ID of 0.156", OD of 0.312", and thickness of 0.028-0.036", manufactured to ASME B18.21.1 standards for dimensional accuracy and performance in inch system applications. It is RoHS 3 (2015/863/EU) Compliant, ensuring adherence to environmental safety regulations, and is suitable for use within a temperature range of -40°F to 180°F without loss of mechanical properties.
