S-91145A211 0.115" ID x 0.235" OD Insulating Washers

Insulating Washers

1280FA00038 Insulating Washers
1280FA00038 Insulating Washers

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

Part No.
Part No. 1280FA00038
Equivalent to mcmaster :
91145A211

Basic Information

System of Measurement Inch
Washer Type Sleeve
Color Off-White

Dimension Parameters

ID 0.115"
OD 0.235"
Thickness 0.047"
Overall Height 0.11"

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. 4

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant

Geometric Parameters

Sleeve OD 0.145"
Sleeve Height 0.063"
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 chemical environments.
  • Excellent dimensional stability with precise 0.115" ID and 0.235" OD for a secure fit on No. 4 screws.
  • High mechanical durability with Rockwell R108 hardness, resisting wear and deformation under load.
  • Wide operating temperature range from -40°F to 180°F, ensuring performance in varied industrial conditions.
  • RoHS 3 compliance guarantees environmental safety and meets global regulatory standards.
  • Reliable sleeve design with 0.145" OD and 0.063" height for enhanced vibration resistance and load distribution.
  • Lightweight and non-conductive properties reduce overall weight and prevent electrical shorts.

Professional Applications & Engineering Value

This Nylon 6/6 plastic sleeve washer is engineered to address common industrial challenges such as corrosion, electrical conductivity, and component wear. Its off-white color and high hardness (Rockwell R108) provide long-lasting performance in applications like electronics assembly, automotive systems, and machinery where reliable insulation and corrosion resistance are critical. The sleeve design enhances stability under vibration, making it a cost-effective solution for maintaining bolt integrity in harsh environments. With a temperature range of -40°F to 180°F, it supports diverse industrial plastic washer needs without compromising safety or efficiency.

Specification Summary & Compliance

This washer adheres to inch measurement standards with precise dimensions: ID 0.115", OD 0.235", thickness 0.047", and sleeve OD 0.145". It is designed for No. 4 screw sizes and complies with RoHS 3 (2015/863/EU) regulations, ensuring it is free from hazardous substances. Manufactured to consistent quality, it meets industry expectations for dimensional accuracy and material performance in various engineering applications.

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