S-94154A600 0.385" ID x 0.81" OD High-Pressure Bonded Sealing Washers For Screw Heads and Nuts

High-Pressure Bonded Sealing Washers For Screw Heads and Nuts

1338FA00044 High-Pressure Bonded Sealing Washers For Screw Heads and Nuts
1338FA00044 High-Pressure Bonded Sealing Washers For Screw Heads and Nuts

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

Part No.
Part No. 1338FA00044
Equivalent to mcmaster :
94154A600

Basic Information

System of Measurement Inch
Washer Type Metal Bonded

Dimension Parameters

ID 0.385"
OD 0.81"
Thickness 0.077-0.087"

Material & Strength Parameters

Material 316 Stainless Steel
Hardness Rockwell B77

Temperature & Environment Parameters

Temperature Range, °F Min. -60°
Temperature Range, °F Maximum 270°

Installation & Application Parameters

For Screw Size 3/8"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant

Seal Parameters

Seal Material PVC Plastic Sealant
Seal Color Black
Maximum Pressure, psi For Fluids 8500
Maximum Pressure, psi For Gases 8500
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments.
  • Reliable sealing under extreme pressure up to 8500 psi for both fluids and gases, preventing leaks in critical systems.
  • Wide temperature tolerance from -60°F to 270°F, ensuring consistent performance in fluctuating thermal conditions.
  • Durable metal-to-PVC bond provides a robust, long-lasting seal that resists wear and deformation.
  • Enhanced mechanical strength with a Rockwell B77 hardness rating, offering superior load distribution and vibration resistance.
  • Environmental compliance with RoHS 3 standards, making it safe for use in regulated industries.
  • Precise fit for 3/8" screws with standardized dimensions (0.385" ID, 0.81" OD), ensuring easy installation and secure fastening.

Professional Applications & Engineering Value

This 316 stainless steel metal bonded washer is engineered to address common industrial challenges such as fluid leakage, thermal expansion, and corrosion-induced failure. The PVC plastic sealant bonded to the metal washer creates an impermeable barrier, making it ideal for high-pressure applications in hydraulic systems, pneumatic controls, and chemical processing equipment. Its ability to maintain integrity across a broad temperature range from -60°F to 270°F ensures reliability in outdoor, automotive, and oil/gas sectors. By combining the strength of stainless steel with the flexibility of a PVC seal, it reduces maintenance downtime and enhances safety in demanding environments.

Specification Summary & Compliance

This washer features precise dimensions with an inner diameter of 0.385", outer diameter of 0.81", and thickness between 0.077" and 0.087", designed for 3/8" screw sizes. It adheres to standard inch measurement systems and is manufactured to deliver consistent performance under pressures up to 8500 psi. The product is RoHS 3 (2015/863/EU) compliant, ensuring it meets strict environmental and safety regulations for hazardous substance restrictions.

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