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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
565321
Push-in fitting CRQS-1/4-5/16-U
The Festo part number 565321 is a standard straight industrial component featuring a push-pull structural design with a 0.256 in nominal width and a 16 mm tubing insertion depth. It includes a 1/4 NPTF male thread pneumatic connection 1, a connection for 5/16" outside diameter pneumatic tubing, and an external hexagon 35/64 mounting type operable in any position across an ambient temperature range of -4 °F to 302 °F. Constructed for compressed air use per ISO 8573-1:2010 [7:-:-], this unit delivers an operating pressure from -13.775 psi to 203 psi alongside a corrosion resistance class 4 rating for particularly high corrosion stress. 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
- 565321
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 565321.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- Standard
- Nominal width
- 0.256 in
- Tubing insertion depth
- 16 mm
- Mounting position
- Any
- Design
- Straight design
- Pack size
- 1
- Structural design
- Push-pull principle
- Operating pressure for entire temperature range
- -0.095 MPa...1.4 MPa | -0.95 bar...14 bar | -13.775 psi...203 psi
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:-:-]
- Corrosion resistance class (CRC)
- 4 - Particularly high corrosion stress
- LABS (PWIS) conformity
- VDMA24364 Zone III
- For use in the food industry
- See supplementary material information
- Ambient temperature
- -20 °C...150 °C
- Product weight
- 0.575 oz
- Usable connector cables
- PFAN
- Type of mounting
- External hexagon 35/64
- Pneumatic connection 1
- Male thread 1/4 NPTF
- Pneumatic connection 2
- for pneumatic tubing outside diameter 5/16"
- Ambient temperature Fahrenheit
- -4 °F...302 °F
- Releasing ring color
- Silver
- Note on materials
- RoHS compliant
- Housing material
- high-alloy stainless steel
- Releasing ring material
- high-alloy stainless steel
- Material of tubing seal
- FPM
- Material of tube retaining claw
- high-alloy stainless steel
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 565321. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.