S-95481A035 0.26" ID x 0.683" OD Finishing Washers

Finishing Washers

1277FA00005 Finishing Washers
1277FA00005 Finishing Washers

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

Part No.
Part No. 1277FA00005
Equivalent to mcmaster :
95481A035

Basic Information

System of Measurement Inch
Washer Type Countersunk

Dimension Parameters

ID 0.26"
OD 0.683"
Overall Height 0.18"

Material & Strength Parameters

Material Nylon Plastic
Hardness Rockwell R120

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

Countersink Angle 82°
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Flush surface installation with an 82° countersink angle for seamless integration and reduced snagging in assemblies
  • Excellent temperature resilience from -40°F to 180°F, ensuring reliable performance in both freezing and heated industrial settings
  • Superior durability with Rockwell R120 hardness, providing long-lasting wear resistance and dimensional stability
  • Chemical and corrosion resistance inherent to nylon material, ideal for harsh or moisture-rich environments
  • Electrical insulation properties for safe use in electrical assemblies, preventing short circuits
  • Precise fit for 1/4" screws with 0.26" ID and 0.683" OD, offering secure fastening and even load distribution
  • Environmental compliance with RoHS 3 standards, meeting global regulatory requirements for hazardous substance restrictions

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this Nylon 82° Countersunk Washer solves common assembly challenges by providing a flush, low-profile finish that eliminates protrusions and reduces the risk of component damage. Its nylon plastic construction delivers inherent chemical resistance and electrical insulation, making it ideal for use in electrical enclosures, machinery, and outdoor equipment exposed to moisture or corrosive agents. The washer maintains integrity across a broad temperature range from -40°F to 180°F, ensuring reliable performance in both sub-zero and high-heat environments without cracking or deforming. This combination of material properties and precise countersunk design enhances product longevity and safety in industrial plastic washer applications, from automotive to consumer electronics.

Specification Summary & Compliance

This washer adheres to inch system dimensions with an ID of 0.26", OD of 0.683", and overall height of 0.18", designed for use with 1/4" screws. It features an 82° countersink angle for standard flush mounting and is manufactured from Nylon material with a Rockwell R120 hardness for consistent mechanical performance. The product is fully RoHS 3 (2015/863/EU) Compliant, ensuring it meets stringent environmental and safety standards for restricted substances.

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