Global industrial sourcing · Houston, Texas info@mropartsrfq.com
Products/Festo/9421
Festo 9421 Bulkhead quick connector SCK-PK-4
Reference imageConfirm configuration by manufacturer part number.

Festo

9421

Bulkhead quick connector SCK-PK-4

This Festo industrial component, part number 9421, is a bulkhead design featuring a 3.4 mm nominal width and any mounting position, supplied in a pack size of 10. It operates across an ambient and operating temperature range of -40 °C to 150 °C at pressures from 0 MPa to 1.6 MPa (0 bar to 16 bar, 0 psi to 232 psi) using compressed air as per ISO 8573-1:2010 [7:-:-], with lubricated operation possible. The unit incorporates an anodized wrought aluminum alloy connector and union nut alongside a galvanized steel nut, offering a corrosion resistance class (CRC) of 1 and VDMA24364-B1/B2-L LABS conformity while complying with RoHS standards. Pneumatic connection 1 accommodates 6 mm outside diameter pneumatic tubing or a 4 mm inside diameter barbed fitting with a union nut, and pneumatic connection 2 accommodates 6 mm outside diameter pneumatic tubing or a 4 mm inside diameter barbed fitting with a nut. Submit the exact part number, quantity, and application requirements to receive a formal quotation.

Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
Request a Quote
Why 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
9421
Data verification
Manufacturer evidence reviewed

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

Exact part-number verificationTechnical properties are matched to 9421.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Nominal width
3.4 mm
Mounting position
Any
Design
Bulkhead
Pack size
10
Operating pressure for entire temperature range
0 MPa...1.6 MPa | 0 bar...16 bar | 0 psi...232 psi
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
-40 °C...150 °C
Pneumatic connection 1
For pneumatic tubing outside diameter 6 mm | For barbed tting, inside diameter 4 mm, with union nut
Pneumatic connection 2
for pneumatic tubing outside diameter 6 mm | for barbed tting, inside diameter 4 mm, with nut
Material of union nut
Wrought aluminum alloy, anodized
Note on materials
RoHS compliant
Nut material
Steel, galvanized
Connector material
Wrought aluminum alloy, anodized

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 9421. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.