531666

Name: Festo 531666 Quick coupling plug KS3-1/4-A
Brand: Festo

Quick coupling plug KS3-1/4-A

The Festo part number 531666 is an industrial component featuring an external thread G1/4 pneumatic connection 1 and a nominal width of 4.95 mm, constructed with nickel-plated brass and a PA66-GF30 and TPE-U threaded seal. This RoHS-compliant unit operates across a pressure range of -0.095 MPa to 1.2 MPa (-13.775 psi to 174 psi) and supports a normal nominal flow rate from 225 l/min to 653 l/min using compressed air as per ISO 8573-1:2010 [7:-:-], with lubricated operation possible. It weighs 23 g, exhibits a corrosion resistance class of 1, maintains a nominal tightening torque of 9.5 Nm with a ±15% tolerance, and functions within an ambient temperature range of -10 °C to 60 °C. Submit the exact part number, quantity, and application requirements for a quote.

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Manufacturer: Festo
Part number: 531666
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Technical Specifications

Nominal width: 4.95 mm
Operating pressure for entire temperature range: -0.095 MPa...1.2 MPa | -0.95 bar...12 bar | -13.775 psi...174 psi
Normal nominal ow rate (normalized to DIN 1343): 225 l/min...653 l/min
Nominal ow rate standardized according to ISO 8778: 243.9 l/min...707.9 l/min
Operating medium: Compressed air as per ISO 8573-1:2010 [7:-:-]
Information on operating and pilot media: Lubricated operation possible
Corrosion resistance class (CRC): 1 - Low corrosion stress
LABS (PWIS) conformity: VDMA24364-B1/B2-L
Ambient temperature: -10 °C...60 °C
Nominal tightening torque: 9.5 Nm
Tolerance for nominal tightening torque: ±15%
Product weight: 23 g
Pneumatic connection 1: External thread G1/4
Note on materials: RoHS compliant
Material of threaded seal: PA66-GF30 / TPE-U
Information on materials: Brass, nickel-plated

Engineering context

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Our sourcing response is prepared against Festo 531666. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.