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Festo
531668
Quick coupling plug KS3-1/8-I
The Festo part number 531668 is an industrial component featuring a nominal width of 4.95 mm, an internal thread G1/8 pneumatic connection 1, and nickel-plated brass construction 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 supports a normal nominal flow rate of 225 l/min to 617 l/min normalized to DIN 1343, alongside an ISO 8778 standardized flow rate of 243.9 l/min to 668.8 l/min using compressed air as per ISO 8573-1:2010 [7:-:-]. Designed with a corrosion resistance class of 1, LABS conformity VDMA24364-B1/B2-L, and a product weight of 16 g, this component functions at ambient temperatures from -10 °C to 60 °C with a nominal tightening torque of 5 Nm at a ±15% tolerance, while permitting lubricated operation. Submit the exact part number, quantity, and application requirements to request a quote.
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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
- 531668
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 531668.
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...617 l/min
- Nominal ow rate standardized according to ISO 8778
- 243.9 l/min...668.8 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
- 5 Nm
- Tolerance for nominal tightening torque
- ±15%
- Product weight
- 16 g
- Pneumatic connection 1
- Internal thread G1/8
- 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 531668. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.