S-91145A246 0.25" ID x 0.5" OD Insulating Washers

Insulating Washers

1280FA00069 Insulating Washers
1280FA00069 Insulating Washers

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

Part No.
Part No. 1280FA00069
Equivalent to mcmaster :
91145A246

Basic Information

System of Measurement Inch
Washer Type Sleeve
Color Off-White

Dimension Parameters

ID 0.25"
OD 0.5"
Thickness 0.062"
Overall Height 0.499"

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
REACH REACH (EC 1907/2006) (01/17/2022, 223 SVHC) Compliant

Geometric Parameters

Sleeve OD 0.375"
Sleeve Height 0.437"
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Exceptional durability with Nylon 6/6 construction offering high impact resistance and long service life in demanding environments
  • Reliable temperature performance maintaining structural integrity across a wide operating range from -40°F to 180°F
  • Superior hardness protection with Rockwell R108 rating ensuring excellent wear resistance and load distribution
  • Precision dimensional fit with 0.25" ID and 0.5" OD providing secure fastening for 1/4" screw applications
  • Enhanced insulation properties thanks to nylon's natural electrical and thermal insulating characteristics
  • Full regulatory compliance meeting RoHS 3 and REACH standards for safe use in industrial applications
  • Corrosion-resistant performance with plastic construction eliminating rust concerns in harsh environments

Professional Applications & Engineering Value

This Nylon 6/6 plastic sleeve washer delivers critical engineering solutions where metal washers fall short. The sleeve design provides enhanced bearing surface and vibration dampening, making it ideal for electrical enclosures, marine applications, and food processing equipment where corrosion resistance and electrical insulation are paramount. The 0.25" ID ensures perfect compatibility with 1/4" screw sizes, while the 0.5" OD distributes load effectively to prevent surface damage. With its wide temperature range from -40°F to 180°F, this washer maintains performance in both freezing conditions and moderately heated environments, solving common material failure points in outdoor and industrial settings.

Specification Summary & Compliance

This inch-system sleeve washer features precise dimensions including 0.25" ID, 0.5" OD, 0.062" thickness, 0.375" sleeve OD, and 0.437" sleeve height. Manufactured from Nylon 6/6 plastic with Rockwell R108 hardness rating, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial compliance. The off-white color provides visual identification and meets industry standards for plastic washers in technical applications.

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