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DANFOSS / EATON FLEXMASTER - CODE FX

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Description & Features

Designed for hydraulic line connections requiring fast serviceability, the Danfoss / Eaton Flexmaster - Code Fx is a carbon steel sleeve fitting suited to tube and pipe joint assemblies in industrial hydraulic systems. Both ends are female configuration with a size 5 designation, making this a symmetrical, inline connection component for line, hose, or tube terminations.

The Flexmaster sleeve connects and disconnects without tools, simplifying routine maintenance and reducing downtime during repairs. Its design also absorbs machine vibration, helping to protect adjacent components and maintain connection integrity under dynamic operating conditions.

Fluid compatibility documentation and catalog references are available from Eaton Aeroquip for specification verification and application guidance.

SKU: NK1237-500B0650

Supplier Part Number (MPN): NK1237-500B0650

Specifications

Brand
Danfoss
Connection Type
Tube
Dimensions
5-1/263 in Dia x 6-1/2 in L
Finish
Zinc-Plated
Fitting Type
Sleeve
Material
Steel
Material Construction
Carbon Steel
nmfc
50
Nominal Size
#5
Series
NK1237 Series

Product Questions & Answers (2)

Question by: Kent S on May 14, 2025, 8:05 PM
Does this sleeve connector work without any tools to get it hooked up or taken apart? Trying to cut down on how long our guys spend swapping out lines during maintenance windows.
Answer by: Customer Support on May 16, 2025, 4:09 PM
the Flexmaster sleeve connects and disconnects without tools. That's one of the main reasons folks reach for it in maintenance-heavy applications. No wrenches, no fuss, just a straightforward coupling that your crew can swap in and out quickly without a lot of downtime.
Question by: Travis E on Sep 30, 2025, 12:03 PM
need a sleeve fitting i can pull apart quick during maintenance, is this one tool-free or am i still gonna need wrenches
Answer by: Customer Support on Oct 1, 2025, 5:04 PM
Quick connects and disconnects without tools is one of the main features of this Flexmaster sleeve, so it is meant for service work where you need to separate and reconnect the line fast.

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