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
153971
Push-in L-fitting QSRL-3/8-3/8-U
The Festo 153971 is a standard L-shaped industrial component featuring a push-pull structural design with a coating-sealed screwed plug and a gray releasing ring. It connects a 3/8 NPT external thread to a 3/8" outside diameter pneumatic tubing using an external hexagon 7/8 for mounting. Operating within a pressure range of -0.95 bar to 10 bar (-13.775 psi to 145 psi) and temperatures from -10 °C to 60 °C (14 °F to 140 °F), this component handles compressed air as per ISO 8573-1:2010 [7:-:-] with lubricated operation possible. Please submit your exact part number, quantity, and application requirements to request 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
- 153971
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 153971.
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
- Type of seal on screwed plug
- Coating
- Mounting position
- Any
- Design
- L-shape
- Pack size
- 1
- Structural design
- Push-pull principle
- Operating pressure for entire temperature range
- -0.095 MPa...1 MPa | -0.95 bar...10 bar | -13.775 psi...145 psi
- Maritime classication
- See certicate
- 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
- Max. tightening torque
- 24 Nm
- Type of mounting
- External hexagon 7/8
- Pneumatic connection 1
- external thread 3/8 NPT
- Pneumatic connection 2
- for pneumatic tubing outside diameter 3/8"
- Ambient temperature Fahrenheit
- 14 °F...140 °F
- Releasing ring color
- Gray
- Note on materials
- RoHS compliant
- Housing material
- PBT
- Releasing ring material
- POM
- Material of tubing seal
- NBR
- 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 153971. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.