QSMY-6-4 – Push-In Y-Connector – Festo Pneumatic Fittings

USD $ 8.82 USD $ 7.23

SKU: Festo 153374

Manufacturer Part Number: Festo 153374
Festo Pneumatic Fittings: QSMY-6-4
OEM Spec Ref 

The Festo QSMY-6-4, featuring MPN 153374, is an advanced pneumatic fitting designed to enhance the connectivity and efficiency of pneumatic systems across a variety of industrial applications. This high-quality fitting ensures optimal air flow and reliable connections, making it a crucial component for maintaining system integrity and performance.

Key Features:

  • Precision Connection: The QSMY-6-4 offers precision-engineered connections that ensure air tightness and stability in pneumatic lines, which is essential for maintaining system pressure and efficiency.
  • Durable Material: Constructed from top-grade materials, this fitting is built to resist the rigorous conditions of industrial environments, ensuring durability and a long service life.
  • Streamlined Design: Its streamlined design allows for easy integration into existing pneumatic systems, supporting a seamless fit that enhances overall system aesthetics and functionality.
  • Simple Installation: The fitting features a user-friendly push-in design that simplifies the installation process, reducing setup times and allowing for quick repairs or adjustments.
  • Versatile Use: Compatible with tubing diameters of 6 mm and designed for a variety of thread sizes, the QSMY-6-4 can be used in multiple configurations, catering to a broad spectrum of industrial requirements.


  • Improved System Performance: By ensuring secure and efficient connections, this fitting enhances the performance and reliability of pneumatic systems.
  • Energy Efficiency: Effective air management helps minimize leaks and pressure losses, leading to reduced energy consumption and lower operational costs.
  • Increased Equipment Longevity: The robust construction of the QSMY-6-4 helps protect against wear and damage, extending the lifespan of both the fitting and associated pneumatic components.
  • Enhanced Safety: Reliable connections prevent accidental disconnections and leaks, improving the safety of operations within industrial settings.


  • Automated Production Lines: Essential for maintaining consistent and reliable pneumatic connections in automated production environments, ensuring flawless operation and high-quality outputs.
  • Robotics and Automation: Plays a vital role in robotic systems and automated assemblies where precision and reliability are paramount.
  • Maintenance and Service Areas: A preferred choice in settings requiring frequent system reconfigurations or maintenance, thanks to its ease of installation and robustness.
  • Diverse Industrial Applications: From manufacturing to material handling, the QSMY-6-4 is suitable for a wide array of applications where reliable pneumatic fittings are crucial.

The Festo QSMY-6-4 Pneumatic Fitting represents Festo’s commitment to pioneering pneumatic technology, delivering a high-performance solution for enhancing the connectivity and efficiency of industrial pneumatic systems.

Technical Data

Feature Specification
Size Mini
Nominal width 2.3 mm
Mounting position Any
Design Y-shape
Pack size 10
Structural design Push-pull principle
Operating pressure for entire temperature range -0.095 MPa … 0.6 MPa
Operating pressure for entire temperature range -0.95 bar … 6 bar
Operating pressure for entire temperature range -13.775 psi … 87 psi
Temperature-dependent operating pressure -0.095 MPa … 1.4 MPa
Temperature-dependent operating pressure -0.95 bar … 14 bar
Temperature-dependent operating pressure -13.775 psi … 203 psi
Maritime classification See certificate
Operating medium Compressed air as per ISO 8573-1:2010 [7:-:-]
Information on operating and pilot media Operation with oil lubrication possible
Corrosion resistance class (CRC) 1 – Low corrosion stress
LABS (PWIS) conformity VDMA24364-B1/B2-L
Ambient temperature -10 °C … 80 °C
Product weight 5.3 g
No. of outlets 2
No. of supply lines 1
Pneumatic connection 1 For pneumatic tubing outside diameter 6 mm
Pneumatic connection 2 for pneumatic tubing outside diameter 4 mm
Releasing ring color Blue
Note on materials RoHS-compliant
Housing material PBT
Releasing ring material POM
Material of tubing seal NBR
Material of tube retaining claw High-alloy stainless steel
Weight 0.0053 kg