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HK Series Industrial Interchange Series B Brass Hydraulic Quick Disconnect, Male Half, -02 Coupling, 1/8-27 Female NPT

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Description & Features

Engineered for various industrial applications, this quick disconnect coupling features a brass construction and stainless steel springs, enhancing corrosion resistance and fluid compatibility. The design adheres to ISO standard 7241-1 Series B, ensuring impeccable performance in agriculture, hydraulic tools, general industry, and more.

Equipped with self-sealing poppet valves, it delivers superior high and low-pressure sealing. The standard seal material is Buna-N, with options available in PTFE, Neoprene, VKM, EPDM, and Kalrezreg; to suit diverse requirements.

Temperature tolerance ranges from -40deg;F to +250deg;F for Buna-N, -65deg;F to +212deg;F for Neoprene, -65deg;F to +300deg;F for EPDM, and -15deg;F to +400deg;F for FKM, accommodating a variety of operating conditions. The coupling size is -02 with a 1/8-27 NPT thread and push-to-connect end type, aiming for streamlined and efficient fluid transfer.

MPN: C1MK39

Supplier Part Number: B1K11

Specifications

A
1.26
Air Inclusion Max
0.60 Cubic_centimeter
Application
Agriculture, Hydraulic Tool, General Industry, Construction, Fluid Transfer, Transportation, Military, Law Enforcement/Rescue, Chemical, Oil and Gas, Consumer Products, HVAC, Food and Beverage, Trucks, Aerospace, Medical
Coupling Size
-02
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13555
End Size 1
0.13
End Size 2
0.13
End Type 1
Push to Connect
End Type 2
NPTF
Fluid Loss
0.50 Cubic_centimeter
Minimum Working Temperature
-40
Safety locking Mechanism
None
Seal Material
Buna-N
Supplier Part Number
B1K11
Thread 1
1/8-27
Thread Sealant
No
Alternate Part Numbers
Alternate Part Number C1MK39, Alternate Part Number MINO-00015X08744
Product Weight
0.05 lbs

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Product Questions & Answers (4)

Question by: Denise H on Sep 7, 2025, 6:13 AM
got a 1/8-27 female npt port on my hose, is this the right male half quick disconnect to screw in?
Answer by: Customer Support on Sep 9, 2025, 8:43 AM
This male half uses 1/8-27 female NPTF threads, and it is a -02 coupling size. If your connection point is truly a 1/8-27 female NPT port, you would need a male NPT thread on the coupling, not a female NPTF.
Question by: Earl P on Apr 27, 2025, 8:12 AM
Will this work with different kinds of hydraulic fluids, or just certain ones?
Answer by: Customer Support on Apr 29, 2025, 6:32 AM
Its brass construction and stainless steel springs offer good corrosion resistance and fluid compatibility. The standard seal is Buna-N, but you can get it with PTFE, Neoprene, FKM, EPDM, and Kalrez seals for different fluids.
Question by: Darryl B on Jul 22, 2025, 9:35 PM
what seal material comes standard on these, and is it gonna hold up running hydraulic oil day in and day out?
Answer by: Customer Support on Jul 24, 2025, 6:47 AM
Buna-N is the standard seal, and it handles a temperature range of -40°F up to 250°F. For most hydraulic oil applications that fall within that range, it holds up well under regular use. If your fluid or operating temps push outside that window, there are other seal options available including Neoprene, EPDM, FKM, PTFE, and Kalrez, each rated for different temperature ranges depending on what you're running.
Question by: Gary W on Sep 15, 2025, 10:06 AM
trying to replace an old series b coupler, is this the right kind or is it some oddball style
Answer by: Customer Support on Sep 16, 2025, 9:22 PM
For interchange, it follows ISO 7241-1 Series B dimensions, so it matches the common “Series B” style used across a lot of industrial couplers. It is a -02 size male half with 1/8-27 female NPTF threads on the pipe end, and the other side is push-to-connect.