S-95630A842 0.344" ID x 1.5" OD Plastic Washers

Plastic Washers

1263FA00197 Plastic Washers
1263FA00197 Plastic Washers

Image may differ from product. See technical specification for details.

Part No.
Part No. 1263FA00197
Equivalent to mcmaster :
95630A842

Basic Information

System of Measurement Inch
Washer Type Flat
Color White

Dimension Parameters

ID 0.344"
OD 1.5"
Thickness 0.027-0.035"

Material & Strength Parameters

Material PTFE Plastic
Hardness Durometer 55D

Temperature & Environment Parameters

Maximum Temperature 500°F

Installation & Application Parameters

For Screw Size 5/16"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Extreme Temperature Performance – Withstands continuous exposure up to 500°F, ideal for high-heat industrial applications without degradation.
  • Superior Chemical Resistance – Made from PTFE plastic, offering excellent resistance to corrosive chemicals and harsh environments.
  • Consistent Load Distribution – Flat washer design ensures even pressure distribution, reducing stress on 5/16" screw assemblies.
  • Durable Material Hardness – Durometer 55D hardness provides reliable mechanical strength and long-term wear resistance.
  • Precision Sizing – 0.344" ID and 1.5" OD dimensions ensure accurate fit and alignment with standard 5/16" fasteners.
  • Regulatory Compliance – Meets RoHS 3 and REACH standards, ensuring safe use in regulated industries and global markets.
  • Low Friction & Non-Stick Properties – PTFE material minimizes friction and prevents sticking, simplifying maintenance and disassembly.

Professional Applications & Engineering Value

This PTFE plastic flat washer is engineered to address critical challenges in demanding settings where temperature fluctuations and chemical exposure are common. Its high-temperature resistance up to 500°F makes it suitable for automotive, aerospace, and chemical processing equipment, preventing failure under thermal stress. The chemical-resistant PTFE material ensures longevity in corrosive environments, reducing replacement frequency and maintenance costs. With a precise 5/16" screw size compatibility and flat washer design, it delivers secure fastening and vibration resistance in assemblies requiring thermal stability and regulatory adherence like RoHS and REACH compliance.

Specification Summary & Compliance

This flat washer adheres to inch system measurements with an ID of 0.344", OD of 1.5", and thickness ranging from 0.027" to 0.035". It is manufactured to standard specifications for 5/16" screw applications, featuring a hardness of Durometer 55D for consistent performance. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for industrial use without hazardous substances.

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