S-96100A135 0.234" ID x 0.5" OD Plastic Washers

Plastic Washers

1266FA00058 Plastic Washers
1266FA00058 Plastic Washers

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

Part No.
Part No. 1266FA00058
Equivalent to mcmaster :
96100A135

Basic Information

System of Measurement Inch
Washer Type Flat
Color Black

Dimension Parameters

ID 0.234"
OD 0.5"
Thickness 0.042-0.052"

Material & Strength Parameters

Material Hard Fiber
Hardness Rockwell R70

Temperature & Environment Parameters

Temperature Range, °F Maximum 230°

Installation & Application Parameters

For Screw Size No. 12

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (07/08/2021, 219 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Exceptional electrical insulation properties from hard fiber material, ideal for preventing current leakage in sensitive equipment.
  • Superior corrosion and chemical resistance ensures long-lasting performance in harsh industrial environments without degradation.
  • High Rockwell R70 hardness rating provides excellent durability and resistance to deformation under load.
  • Precise dimensional fit with 0.234" ID and 0.5" OD for reliable seating on No. 12 screws, reducing assembly errors.
  • Thermal stability up to 230°F allows consistent operation in moderate heat applications without loss of integrity.
  • Compliance with RoHS 3 and REACH regulations guarantees safe, environmentally responsible use in global markets.
  • Uniform thickness (0.042-0.052") ensures even load distribution, minimizing stress concentrations on fastened components.

Professional Applications & Engineering Value

Engineered for demanding settings, these hard fiber flat washers excel in electrical and industrial systems where insulation and corrosion resistance are critical. The hard fiber material naturally repels moisture and chemicals, preventing short circuits and fastener degradation in machinery, control panels, and outdoor installations. With a Rockwell R70 hardness and consistent 0.5" OD and No. 12 screw size compatibility, they maintain secure fastening under vibration and thermal cycling up to 230°F. This makes them a reliable choice for electrical insulation washers in automotive, HVAC, and manufacturing equipment, reducing downtime and maintenance costs.

Specification Summary & Compliance

This flat washer adheres to inch system measurements with an inner diameter of 0.234", outer diameter of 0.5", and thickness range of 0.042-0.052" for precise fit. Manufactured to standard flat washers specifications, it ensures compatibility with No. 12 screws. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial use.

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