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Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Global industrial sourcing · Houston, Texas info@mropartsrfq.com
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Festo
5664
Quick connector ACK-1/8-PK-3
The Festo part number 5664 is a straight-design industrial component featuring a 2.4 mm nominal width, an internal thread G1/8 pneumatic connection 1, and a pneumatic connection 2 for 4 mm outside diameter tubing or 3 mm inside diameter barbed fittings with a nut. Constructed with an anodized wrought aluminum alloy union nut and screwed plug, this RoHS-compliant assembly operates across a pressure range of -0.95 bar to 10 bar for compressed air under ISO 8573-1:2010 [7:-:-] and handles water up to 0.6 MPa at 50 °C utilizing a sealing ring type. Rated for a nominal tightening torque of 3.5 Nm with a ±20% tolerance, the unit incorporates PA-reinforced and TPE-U(PU) sealing rings, offers moderate corrosion resistance class 2, and functions within an ambient temperature range of -10 °C to 60 °C in any mounting position. Submit the exact part number, pack size quantity of 10, and application requirements to receive a formal quotation.
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
- 5664
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 5664.
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
- 2.4 mm
- Type of seal on screwed plug
- Sealing ring
- Mounting position
- Any
- Design
- Straight design
- Pack size
- 10
- Operating pressure for entire temperature range
- -0.095 MPa...1 MPa | -0.95 bar...10 bar | -13.775 psi...145 psi
- 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
- Lubricated operation possible | Water: G-thread only possible with sealing ring type OL as additional | accessory
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Ambient temperature
- -10 °C...60 °C
- Nominal tightening torque
- 3.5 Nm
- Tolerance for nominal tightening torque
- ±20%
- Pneumatic connection 1
- Internal thread G1/8
- Pneumatic connection 2
- for pneumatic tubing outside diameter 4 mm | for barbed tting, inside diameter 3 mm, with nut
- Material of union nut
- Wrought aluminum alloy, anodized
- Material of screwed plug
- Wrought aluminum alloy, anodized
- Note on materials
- RoHS compliant
- Sealing ring material
- PA-reinforced | TPE-U(PU)
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 5664. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.