S-91145A225 0.115" ID x 0.242" OD Insulating Washers

Insulating Washers

1280FA00050 Insulating Washers
1280FA00050 Insulating Washers

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

Part No.
Part No. 1280FA00050
Equivalent to mcmaster :
91145A225

Basic Information

System of Measurement Inch
Washer Type Sleeve
Color Off-White

Dimension Parameters

ID 0.115"
OD 0.242"
Thickness 0.046"
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. 4

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 0.14"
Sleeve Height 0.125"
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 thanks to Nylon 6/6 construction, preventing current leakage and short circuits
  • Excellent corrosion and chemical resistance for long-lasting performance in harsh industrial environments
  • Reliable performance across extreme temperatures from -40°F to 180°F, maintaining integrity in both freezing and heated conditions
  • Durable wear resistance with Rockwell R108 hardness, ensuring extended service life under vibration and load
  • Precise fit for No. 4 screws with 0.115" ID and 0.14" sleeve OD, providing secure fastening and reduced installation time
  • Compliance with global environmental standards including RoHS 3 and REACH, meeting international procurement requirements
  • Effective sealing and spacing capability with 0.171" overall height, protecting components from abrasion and moisture

Professional Applications & Engineering Value

This Nylon 6/6 Plastic Sleeve Washer delivers critical engineering solutions where metal fasteners fail. Its non-conductive properties make it ideal for electrical assemblies, preventing galvanic corrosion and providing reliable insulation in control panels and electronic enclosures. The sleeve design with 0.125" height protects threaded components from cross-threading while distributing load evenly. With exceptional temperature resistance from -40°F to 180°F, it maintains dimensional stability in automotive, aerospace, and outdoor equipment applications where thermal cycling occurs. The off-white color allows for easy inspection and identification in assembled products, streamlining maintenance procedures.

Specification Summary & Compliance

Manufactured to precise inch system dimensions including 0.115" ID, 0.242" OD, and 0.046" thickness. The sleeve type washer features consistent wall thickness and concentricity for uniform performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no restricted substances. Material certification available upon request to support quality assurance protocols in regulated industries.

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