S-91145A234 0.187" ID x 0.375" OD Insulating Washers

Insulating Washers

1280FA00058 Insulating Washers
1280FA00058 Insulating Washers

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

Part No.
Part No. 1280FA00058
Equivalent to mcmaster :
91145A234

Basic Information

System of Measurement Inch
Washer Type Sleeve
Color Off-White

Dimension Parameters

ID 0.187"
OD 0.375"
Thickness 0.031"
Overall Height 0.171"

Material & Strength Parameters

Material Nylon 6/6 Plastic
Hardness Rockwell R108

Temperature & Environment Parameters

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

Installation & Application Parameters

For Screw Size No. 10

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2022, 223 SVHC) Compliant

Geometric Parameters

Sleeve OD 0.245"
Sleeve Height 0.14"
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 properties prevent current leakage and protect sensitive components
  • Excellent corrosion resistance ensures long-term reliability in harsh industrial environments
  • Wide temperature tolerance from -40°F to 180°F maintains performance in extreme conditions
  • Rockwell R108 hardness provides exceptional durability and resistance to deformation under load
  • Precision sleeve design with 0.245" OD and 0.14" height ensures perfect fit and alignment for No. 10 screws
  • Regulatory compliance with RoHS 3 and REACH standards guarantees environmental safety and global market acceptance
  • Lightweight nylon 6/6 construction reduces overall assembly weight while maintaining structural integrity

Professional Applications & Engineering Value

This nylon 6/6 sleeve washer delivers critical engineering solutions where metal fasteners fall short. The off-white nylon material provides inherent electrical insulation, making it ideal for electrical enclosures, control panels, and electronic assemblies where short-circuit prevention is paramount. Its corrosion-resistant properties eliminate galvanic corrosion concerns when used with dissimilar metals, while the sleeve design ensures proper stand-off spacing and vibration dampening. The temperature resistance from -40°F to 180°F makes it suitable for outdoor equipment, automotive applications, and industrial machinery exposed to thermal cycling. These industrial plastic washers solve common fastener challenges by combining mechanical strength with chemical inertness in demanding environments.

Specification Summary & Compliance

This inch-system sleeve washer features precise dimensions with 0.187" ID, 0.375" OD, and 0.031" thickness, engineered for No. 10 screw applications. Manufactured from Nylon 6/6 plastic with Rockwell R108 hardness rating, it maintains dimensional stability across its operating range. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for global industrial markets.

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