The Festo QS-3/8-12 push-in fitting offers reliable pneumatic connections with its straight design and any mounting position. Ideal for high-reliability applications.
Product Modelqs-3/8-12
Material Number153009
Product ID2857
Stock on Request
Last updated: 8/29/2026
Key Features
1
Reliable ConnectionsThe QS-3/8-12 push-in fitting provides secure and efficient pneumatic connections, ensuring minimal leakage and optimal performance.
2
Versatile MountingDesigned for any mounting position, this fitting can be easily integrated into various pneumatic systems, offering flexibility in application.
3
Straight DesignThe straight design of the QS-3/8-12 makes it easy to install and maintain, reducing the complexity of pneumatic setups.
4
High-Quality SealEquipped with a high-quality seal on the screwed plug, this fitting ensures that connections remain tight and leak-free over time.
5
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Size
Standard
Nominal width
11mm
Type of seal on screwed plug
Coating
Mounting position
Any
Design
Straight design
Pack size
10
Standardized PackagingAvailable in packs of 10, the QS-3/8-12 push-in fitting is conveniently packaged for easy inventory management and distribution.
Structural design
Push-pull principle
Operating pressure for entire temperature range
-13.775psi 87psi
Temperature-dependent operating pressure
-13.775psi 203psi
Information on operating pressure
Water: max. 0.6 MPa at max. 50 °C
Operating medium
Compressed air as per ISO 8573-1:2010 [7:-:-] Water (liquid, ice-free)
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
Nominal tightening torque
15.5Nm
Tolerance for nominal tightening torque
± 20%
Product weight
30g
Type of mounting
External hexagon, AF 21
Pneumatic connection 1
External thread R3/8
Pneumatic connection 2
for pneumatic tubing outside diameter 12 mm
Releasing ring color
Blue
Note on materials
RoHS-compliant
Housing material
Brass, nickel-plated
Releasing ring material
POM
Material of tubing seal
NBR
Material of tube retaining claw
High-alloy stainless steel
Manufacturer ID
153009
Festo QS-3/8-12 Push-in Fitting for Reliable Pneumatic Connections | INDSLT
