S-90097A171 0.754" ID x 0.935" OD Insulating Washers

Insulating Washers

1281FA00035 Insulating Washers
1281FA00035 Insulating Washers

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

Part No.
Part No. 1281FA00035
Equivalent to mcmaster :
90097A171

Basic Information

System of Measurement Inch
Washer Type Sleeve
Color Off-White

Dimension Parameters

ID 0.754"
OD 0.935"
Overall Height 0.42"

Material & Strength Parameters

Material Nylon Plastic
Hardness Rockwell R118

Temperature & Environment Parameters

Temperature Range, °F Min. -40°
Temperature Range, °F Maximum 180°

Installation & Application Parameters

For Screw Size 3/4"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/10/2022, 224 SVHC) Compliant

Geometric Parameters

Sleeve OD 0.81"
Sleeve Height 0.25"
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance thanks to nylon plastic construction, eliminating rust in harsh environments
  • Excellent electrical insulation properties for safe use in electrical assemblies and components
  • Reliable performance across extreme temperatures from -40°F to 180°F, maintaining integrity in fluctuating conditions
  • Durable, long-lasting wear resistance with Rockwell R118 hardness for reduced replacement frequency
  • Precise 3/4" screw compatibility with 0.754" ID and 0.935" OD for secure, vibration-resistant fastening
  • Full regulatory compliance assurance with RoHS 3 and REACH, meeting strict international standards
  • Lightweight off-white design that resists chemical absorption and won't mar sensitive surfaces

Professional Applications & Engineering Value

This nylon plastic sleeve washer delivers critical engineering solutions where metal fasteners fail. Its non-conductive properties make it ideal for electrical insulation in control panels, junction boxes, and electronic enclosures, preventing short circuits. The sleeve design provides superior load distribution for 3/4" screw size applications, reducing material stress in assemblies from automotive to HVAC systems. With exceptional corrosion resistance, it outperforms metallic alternatives in chemical exposure and humid environments while maintaining dimensional stability across its -40°F to 180°F temperature range. The off-white nylon construction offers visual contrast for inspection and resists degradation from UV exposure and most industrial chemicals.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with 0.754" ID, 0.935" OD, and 0.42" overall height. Features Rockwell R118 hardness for consistent performance and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards. The sleeve washer is engineered for 3/4" screw size applications with 0.81" sleeve OD and 0.25" sleeve height, ensuring proper fit and function in industrial fastening systems.

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