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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
578408
Plug screw NPQH-BK-G38-P10
The Festo 578408 is a standard plug screw featuring a G3/8 external thread, internal hexagon AF 8 mounting, and a sealing ring on the screwed plug with an 18.5 g product weight. Operating across a temperature range of 0 °C to 150 °C, it handles a pressure of -0.095 MPa to 2 MPa for compressed air and water, supporting a nominal tightening torque of 9 Nm with a ±20% tolerance in any mounting position. This component holds NSF C0523185 certification, NSF/ANSI 169 food industry compliance, and CRC 3 high corrosion resistance while being supplied in a pack size of 10. Submit the exact part number, quantity, and application requirements for 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
- 578408
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 578408.
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
- Sealing ring
- Mounting position
- Any
- Design
- Plug screw
- Pack size
- 10
- 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
- Certicate 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
- Lubricated operation possible
- Corrosion resistance class (CRC)
- 3 - High corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Cleanroom suitability, measured according to ISO 14644-14
- Statically installed element, no meaningful evaluation possible | 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
- 9 Nm
- Tolerance for nominal tightening torque
- ±20%
- Product weight
- 18.5 g
- Type of mounting
- Internal hexagon, AF 8
- Pneumatic connection 1
- External thread G3/8
- 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 578408. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.