4090

Name: Festo 4090 Quick coupling plug KS2-CK-4
Brand: Festo

Quick coupling plug KS2-CK-4

The Festo part number 4090 is an 11 g industrial component featuring a 2.7 mm nominal width and a normal nominal flow rate of 86 l/min to 129 l/min according to DIN 1343, alongside an ISO 8778 standardized nominal flow rate ranging from 93.2 l/min to 139.8 l/min. Designed for compressed air operating media compliant with ISO 8573-1:2010 [7:-:-], this unit operates within a pressure range of -0.095 MPa to 1.2 MPa (-0.95 bar to 12 bar / -13.775 psi to 174 psi) and an ambient temperature span of -10 °C to 60 °C. It is equipped with pneumatic connection 1 for 6 mm outside diameter pneumatic tubing or a barbed fitting with a 4 mm inside diameter and an anodized wrought aluminum alloy union nut, utilizing RoHS-compliant nickel-plated brass materials with a CRC 1 low corrosion stress rating and VDMA24364-B1/B2-L LABS conformity. Submit the exact part number, quantity, and application requirements to request a 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: 4090
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Technical Specifications

Nominal width: 2.7 mm
Operating pressure for entire temperature range: -0.095 MPa...1.2 MPa | -0.95 bar...12 bar | -13.775 psi...174 psi
Normal nominal ow rate (normalized to DIN 1343): 86 l/min...129 l/min
Nominal ow rate standardized according to ISO 8778: 93.2 l/min...139.8 l/min
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
Product weight: 11 g
Pneumatic connection 1: For pneumatic tubing outside diameter 6 mm | For barbed tting, inside diameter 4 mm, with union nut
Material of union nut: Wrought aluminum alloy, anodized
Note on materials: RoHS compliant
Information on materials: Brass, nickel-plated

Engineering context

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Our sourcing response is prepared against Festo 4090. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.