S-91145A169 0.26" ID x 0.513" OD Insulating Washers

Insulating Washers

1280FA00037 Insulating Washers
1280FA00037 Insulating Washers

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

Part No.
Part No. 1280FA00037
Equivalent to mcmaster :
91145A169

Basic Information

System of Measurement Inch
Washer Type Sleeve
Color Off-White

Dimension Parameters

ID 0.26"
OD 0.513"
Thickness 0.063"
Overall Height 0.813"

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 1/4"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant

Geometric Parameters

Sleeve OD 0.312"
Sleeve Height 0.75"
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Superior insulation and corrosion resistance thanks to Nylon 6/6 material, ideal for electrical and harsh environments.
  • Excellent dimensional stability with a precise 0.26" ID and 0.513" OD ensuring a perfect fit for 1/4" screws.
  • High durability and wear resistance from Rockwell R108 hardness, reducing replacement frequency and maintenance costs.
  • Wide operating temperature range from -40°F to 180°F, maintaining performance in extreme thermal conditions.
  • Reliable chemical and moisture resistance due to the off-white Nylon 6/6 plastic, extending service life in industrial settings.
  • RoHS 3 compliance ensures environmental safety and meets stringent regulatory standards for global use.
  • Effective sleeve design with 0.75" height providing enhanced protection and vibration dampening for fastened assemblies.

Professional Applications & Engineering Value

This Nylon 6/6 plastic sleeve washer is engineered to address common industrial challenges such as electrical insulation, corrosion, and vibration-induced loosening. Its robust sleeve structure and high Rockwell R108 hardness ensure reliable performance in demanding applications like machinery assembly, automotive systems, and outdoor equipment. The off-white color and plastic composition offer excellent resistance to chemicals and UV exposure, making it a go-to choice for B2B procurement in sectors requiring long-term, maintenance-free fastening solutions. By providing consistent dimensional accuracy for 1/4" screw sizes, it minimizes installation errors and enhances overall assembly integrity.

Specification Summary & Compliance

This washer adheres to inch system measurements with precise dimensions: ID 0.26", OD 0.513", thickness 0.063", and sleeve height 0.75". It conforms to industry standards for fit and function with Class 2A thread tolerance equivalents and is manufactured from Nylon 6/6 plastic. Compliant with RoHS 3 (2015/863/EU), it meets environmental regulations, ensuring safe use in various industrial applications without hazardous substances.

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