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Products/Festo/190651
Festo 190651 Push-in fitting QSF-1/4-12-B
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Festo

190651

Push-in fitting QSF-1/4-12-B

The Festo 190651 is a straight industrial component featuring a G1/4 internal thread for pneumatic connection 1 and a connection for a 12 mm outside diameter pneumatic tubing on connection 2. This standard-sized unit utilizes a push-pull structural design with an 11 mm nominal width, a 23.3 mm tubing insertion depth, and an external hexagon SW21 mounting type that operates in any mounting position. It accommodates compressed air and liquid water mediums across an ambient temperature range of -10 °C to 80 °C, supported by a coated screwed plug seal and a pack size of 10. Submit the exact part number, quantity, and application requirements to receive a formal quote.

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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
190651
Data verification
Manufacturer evidence reviewed

For a faster response, include quantity, condition, and delivery destination.

Exact part-number verificationTechnical properties are matched to 190651.
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
11 mm
Tubing insertion depth
23.3 mm
Type of seal on screwed plug
Coating
Mounting position
Any
Design
Straight design
Pack size
10
Structural design
Push-pull principle
Operating pressure for entire temperature range
-0.095 MPa...0.6 MPa | -0.95 bar...6 bar | -13.775 psi...87 psi
Temperature-dependent operating pressure
-0.095 MPa...1.4 MPa | -0.95 bar...14 bar | -13.775 psi...203 psi
Information on operating pressure
Water: max. 0.6 MPa at max. 50 °C
Operating medium
Compressed air as per ISO 8573-1:2010 [7:-:-] | Water (liquid, ice-free)
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...80 °C
Product weight
44 g
Type of mounting
External hexagon SW21
Pneumatic connection 1
Internal thread G1/4
Pneumatic connection 2
for pneumatic tubing outside diameter 12 mm
Releasing ring color
Blue
Note on materials
RoHS compliant
Housing material
Brass, nickel-plated
Releasing ring material
POM
Material of tubing seal
NBR
Material of tube retaining claw
high-alloy stainless steel

Engineering context

Identification and RFQ Guidance

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.

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 190651. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.