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.
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Festo
153961
Rotary push-in connectors QSR-3/8-1/2-U
The Festo 153961 is a standard industrial component featuring an 8 mm nominal size and a push/pull design structure with a coated screw-in stud seal. Built with a PBT housing, POM grey release ring, and NBR tubing seal, this part supports a pneumatic connection for 1/2" outside diameter tubing and operates within a pressure range of -0.95 to 10 bar. It accommodates compressed air media per ISO8573-1:2010 [7:-:-], allows lubricated operation, and features an ambient temperature range of -10 to 60 °C with a maximum tightening torque of 24 Nm. Submit the exact part number, quantity, and application requirements to receive a formal quotation for this 89 g component.
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
- 153961
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 153961.
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 size
- 8 mm
- Type of seal on screw-in stud
- coating
- Assembly position
- Any
- Container size
- 1
- Design structure
- Push/pull principle
- Operating pressure complete temperature range
- -0.95 ... 10 bar
- Maritime classification
- see certificate
- Operating medium
- Compressed air in accordance with ISO8573-1:2010 [7:-:-]
- Note on operating and pilot medium
- Lubricated operation possible
- Corrosion resistance classification CRC
- 1 - Low corrosion stress
- Ambient temperature
- -10 ... 60 °C
- Max. tightening torque
- 24 Nm
- Product weight
- 89 g
- Pneumatic connection, port
- 2 for tubing, 1/2" outside diameter
- color of release ring
- Grey
- Materials note
- Conforms to RoHS
- Material housing
- PBT
- Material release ring
- POM
- Material of tubing seal
- NBR
- Material of tube retaining claw
- High alloy steel, non-corrosive
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 153961. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.