S-90097A162 0.504" ID x 0.645" OD Insulating Washers

Insulating Washers

1281FA00026 Insulating Washers
1281FA00026 Insulating Washers

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

Part No.
Part No. 1281FA00026
Equivalent to mcmaster :
90097A162

Basic Information

System of Measurement Inch
Washer Type Sleeve
Color Off-White

Dimension Parameters

ID 0.504"
OD 0.645"
Overall Height 0.405"

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 1/2"

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 0.548"
Sleeve Height 0.25"
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Superior Electrical Insulation – Nylon construction provides excellent non-conductive properties, preventing electrical shorts in sensitive assemblies
  • Exceptional Temperature Resistance – Maintains structural integrity across extreme conditions from -40°F to 180°F
  • Optimized Mechanical Protection – Rockwell R118 hardness ensures lasting durability against vibration and wear
  • Precision Sleeve Design – 0.25" sleeve height creates secure spacing while 0.548" sleeve OD provides stable bearing surface
  • Regulatory Compliance Assurance – Meets both RoHS 3 and REACH standards for global manufacturing applications
  • Chemical & Corrosion Resistance – Nylon material inherently resists oils, solvents and environmental degradation
  • Perfect Fit for 1/2" Fasteners – 0.504" ID ensures precise alignment and eliminates installation issues

Professional Applications & Engineering Value

This nylon plastic sleeve washer delivers critical engineering solutions where electrical insulation and thermal stability are paramount. The off-white nylon construction provides consistent dielectric properties while the sleeve design maintains precise spacing between components in electrical enclosures, control panels, and outdoor equipment. Engineered to withstand temperature cycling from -40°F to 180°F, this washer prevents thermal expansion issues that compromise assembly integrity. The Rockwell R118 hardness ensures long-term performance in high-vibration industrial environments, making it ideal for electrical applications, HVAC systems, and outdoor machinery where environmental factors challenge conventional washers.

Specification Summary & Compliance

This inch-system sleeve washer features precise dimensions: 0.504" ID, 0.645" OD, and 0.405" overall height with 0.25" sleeve height. Manufactured to exacting standards for 1/2" screw applications, the washer maintains dimensional stability across its operating range. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance. The nylon plastic material meets industrial requirements for consistent performance in demanding applications.

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