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DANFOSS / EATON 3/8 FCOUPX1/2FNPT

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Description & Features

Designed for efficiency and reliability, the Danfoss / Eaton 3/8 FCOUPX1/2FNPT quick disconnect coupling socket is ideal for fluid transfer in industrial plants and construction environments. Its 3/8-inch female push-to-connect end and 1/2-inch NPTF female connection ensure seamless integration into existing systems. Manufactured from durable brass, this coupling features a sleeve lock safety mechanism, enhancing security during operation.

This high-performance coupling exceeds ISO 16028 operating pressures and supports a flow rate of up to 336 gallons per minute, making it suitable for demanding applications. The ball lock internal connection type guarantees a secure fit, while the Buna-N seal material offers excellent resistance to various fluids. This product aligns with Tru-Flate and US Industrial interchange standards, ensuring broad compatibility.

SKU: 440

Supplier Part Number (MPN): 440

Specifications

Brand
Danfoss
Connection Size 1
3/8 in
Connection Size 2
1/2 in
Connection Style
Manual
Connection Type
FNPT, Push-Fit
Connection Type 1
Female Push-to-Connect
Connection Type 2
Female NPTF
Dimensions
2.62 in L x 1.13 in W x 1.13 in H
Finish
Nickel
Fitting Type
Female Half Coupling
Fluid Compatibility
Compressed Air, Gases and Liquids
Hex Size
1 x 1 in
Latch Type
Push/Pull
Material
Brass
Material Construction
Brass
Maximum Operating Pressure
1000 psi
Operating Temperature
-40 to 250 deg F
Safety Locking Mechanism
Sleeve Lock
Seal Material
NBR
Series
400 Series
Thread Size
1/2-14
Valve Type
2-Way

Product Questions & Answers (1)

Question by: Ronnie M on Jan 23, 2026, 8:13 AM
Reckon this'll hook up to my existing air lines without too much fuss? They're mostly US Industrial standard fittings.
Answer by: Customer Support on Jan 24, 2026, 1:23 PM
This coupling aligns with both Tru-Flate and US Industrial interchange standards, so it should integrate seamlessly into your current setup.

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