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Global industrial sourcing · Houston, Texas info@mropartsrfq.com
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Festo
531640
Quick coupling socket KD4-CK-9
The Festo part number 531640 is an industrial component featuring a 7.4 mm nominal width and an operating pressure range of -0.095 MPa to 1.2 MPa. This unit supports a normal nominal flow rate from 261 l/min to 1116 l/min and operates with compressed air according to ISO 8573-1:2010 [7:-:-], with lubricated operation possible within an ambient temperature of -10 °C to 60 °C. Constructed with a nickel-plated brass housing, brass inner raceway and valve body, an anodized wrought aluminum alloy union nut, NBR seals, and high-alloy stainless steel springs, pins, circlips, and barbed fitting connections for 9 mm inside diameter tubing, the assembly weighs 71 g and meets RoHS and VDMA24364-B1/B2-L LABS conformity standards with a CRC rating of 1. Submit the exact part number, quantity, 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
- 531640
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 531640.
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
- 7.4 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)
- 261 l/min...1116 l/min
- Nominal ow rate standardized according to ISO 8778
- 282.9 l/min...1209.7 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
- Product weight
- 71 g
- Pneumatic connection 1
- For barbed tting, inside diameter 9 mm, with union nut
- Material of union nut
- Wrought aluminum alloy, anodized
- Note on materials
- RoHS compliant
- Seals material
- NBR
- Material of spring
- high-alloy stainless steel
- Housing material
- Brass, nickel-plated
- Inner raceway material
- Brass
- Circlip material
- high-alloy stainless steel
- Material of pins
- high-alloy stainless steel
- Valve body material
- Brass
- Material releasing sleeve
- PP
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 531640. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.