Confirm the exact configuration
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
Reference imageConfirm configuration by manufacturer part number.
Festo
531659
Quick coupling socket KD3-1/8-A-R
The Festo 531659 is an industrial component featuring a 5 mm nominal width, an external thread G1/8 pneumatic connection 1, and an operating pressure range of -0.095 MPa to 1.2 MPa. Constructed with a brass housing and valve body, NBR seals, high-alloy stainless steel springs, balls, and circlips, this RoHS-compliant part supports compressed air per ISO 8573-1:2010 [7:-:-] with lubricated operation possible across an ambient temperature range of -10 °C to 60 °C. It has a product weight of 28 g, a CRC rating of 1 for low corrosion stress, and requires a nominal tightening torque of 5 Nm with a ±15% tolerance. Submit the exact part number, quantity, and application requirements for a 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
- 531659
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 531659.
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
- 5 mm
- Operating pressure for entire temperature range
- -0.095 MPa...1.2 MPa | -0.95 bar...12 bar | -13.775 psi...174 psi
- 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
- 28 g
- Pneumatic connection 1
- External thread G1/8
- Note on materials
- RoHS compliant
- Seals material
- NBR
- Material of spring
- high-alloy stainless steel
- Housing material
- Brass
- Material of threaded seal
- PA66-GF30 / TPE-U
- Threaded coupling material
- Brass
- Ball material
- high-alloy stainless steel
- Circlip material
- high-alloy stainless steel
- Valve body material
- Brass
- Material releasing sleeve
- 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 531659. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.