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Festo
531669
Quick coupling plug KS3-1/4-I
The Festo 531669 is an industrial component featuring a 4.95 mm nominal width and a G1/4 internal thread pneumatic connection 1, constructed from nickel-plated brass with RoHS compliance. It operates within a pressure range of -0.095 MPa to 1.2 MPa (-0.95 bar to 12 bar / -13.775 psi to 174 psi) and handles compressed air media per ISO 8573-1:2010 [7:-:-], supporting lubricated operation across an ambient temperature range of -10 °C to 60 °C. This unit delivers a normal nominal flow rate from 225 l/min to 666 l/min (normalized to DIN 1343) and an ISO 8778 standardized flow rate of 243.9 l/min to 721.9 l/min, while weighing 27 g with a nominal tightening torque of 9.5 Nm (±15% tolerance). Submit the exact part number, quantity, and application requirements to receive a formal quote.
Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
Request a QuoteWhy no listed price?
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
- Manufacturer
- Festo
- Part number
- 531669
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 531669.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
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...666 l/min
- Nominal ow rate standardized according to ISO 8778
- 243.9 l/min...721.9 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
- 27 g
- Pneumatic connection 1
- Internal thread G1/4
- Note on materials
- RoHS compliant
- Information on materials
- Brass, nickel-plated
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Technical verification
Our sourcing response is prepared against Festo 531669. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.