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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.
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Festo
578371
Push-in fitting NPQH-DK-M5-Q6-P10
The Festo part number 578371 is a standard straight industrial component featuring a 2.5 mm nominal width, 15.8 mm tubing insertion depth, and a push-pull structural design with a sealing ring on the screwed plug. This component operates across a pressure range of -0.095 MPa to 2 MPa (-0.95 bar to 20 bar, -13.775 psi to 290 psi) with compressed air or liquid water, supports an ambient temperature range of 0 °C to 150 °C, and requires a nominal tightening torque of 1 Nm with a ± 20% tolerance. It achieves Class 4 cleanroom classification per ISO 14644-1, CRC 3 high corrosion stress resistance, NSF C0523185 certification, and NSF/ANSI 169 food industry compliance in a pack size of 10. Submit the exact part number, quantity, and application requirements to request a quote.
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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
- 578371
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 578371.
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
- 2.5 mm
- Tubing insertion depth
- 15.8 mm
- Type of seal on screwed plug
- Sealing ring
- Mounting position
- Any
- Design
- Straight design
- Pack size
- 10
- Structural design
- Push-pull principle
- Operating pressure for entire temperature range
- -0.095 MPa...2 MPa | -0.95 bar...20 bar | -13.775 psi...290 psi
- Information on operating pressure
- Water: max. 0.6 MPa at 0 - 50 °C
- Certificate issuing authority
- NSF C0523185
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:-:-] | Water (liquid, ice-free)
- Information on operating and pilot media
- Operation with oil lubrication possible
- Corrosion resistance class (CRC)
- 3 - High corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Cleanroom class
- Class 4 according to ISO 14644-1
- For use in the food industry
- See declaration of conformity | NSF/ANSI 169
- Ambient temperature
- 0 °C...150 °C
- Nominal tightening torque
- 1 Nm
- Tolerance for nominal tightening torque
- ± 20%
- Product weight
- 8.8 g
- Type of mounting
- Internal hexagon, AF 2.5
- Pneumatic connection 1
- External thread M5
- Pneumatic connection 2
- for pneumatic tubing outside diameter 6 mm
- Note on materials
- RoHS-compliant
- Housing material
- Brass, chemically nickel-plated
- Material of threaded seal
- FPM
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 578371. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.