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HK Series Industrial Interchange Series B Steel Hydraulic Quick Disconnect, Male Half, -04 Coupling, 1/4-18 Female NPT

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Description & Features

The Danfoss / Eaton Hansen HK Series Quick Disconnect Couplings Plug is designed for various industries including agriculture, construction, transportation, and oil & gas. It meets ISO 7241-1 Series B standards and features a two-way self-sealing poppet valve for reliable pressure sealing.

The coupling has a -04 size with 1/4-18 NPTF threads, providing secure and efficient connections. Standard Buna-N seals offer durability, with optional seals available in PTFE, Neoprene, FKM, EPDM, and Kalrezreg; for different applications. The coupling is engineered to minimize fluid loss, with a maximum air inclusion of 1.20 cubic centimeters and fluid loss of 0.90 cubic centimeters.

Operating temperatures range from -40deg;F to +250deg;F for Buna-N, making it suitable for demanding environments. The male half quick disconnect coupling ensures easy installation and maintenance, with PTFE backup rings enhancing socket integrity. This product is compliant with ECCN EAR99 regulations, ensuring it meets export control requirements.

Supplier Part Number: 2K16

Specifications

Brand
Danfoss
Connection Size 1
1/4 in
Connection Size 2
1/4 in
Connection Style
Manual
Connection Type
FNPT
Connection Type 1
Female NPTF
Connection Type 2
Female NPTF
Dimensions
0.87 in Dia x 1.52 in L
Finish
Zinc Trivalent
Fitting Type
Coupling
Fluid Compatibility
Hydraulic Fluids
Hex Size
3/4 in
Latch Type
Push/Pull
Material
Steel
Material Construction
Carbon Steel
Maximum Operating Pressure
5000 psi
Operating Temperature
-40 to 250 deg F
Seal Material
NBR
Series
HK1-8 Series
Thread Size
1/4-18
Valve Type
2-Way

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Product Questions & Answers (3)

Question by: Todd M on Aug 21, 2025, 11:47 AM
trying to swap out an old Series B plug, is this the male half with a 1/4-18 female NPT thread?
Answer by: Customer Support on Aug 22, 2025, 8:04 PM
It is the male half (plug) for an Industrial Interchange ISO 7241-1 Series B style coupling, and the threaded end is 1/4-18 female NPTF.
Question by: Melvin G on Dec 24, 2025, 5:17 PM
trying to swap out an old plug, what size and thread is this one?
Answer by: Customer Support on Dec 26, 2025, 11:32 AM
It is a -04 (1/4 inch) male half plug with 1/4-18 female NPTF threads, and it follows the ISO 7241-1 Series B (industrial interchange) dimensions.
Question by: Kurt S on Jul 20, 2025, 11:42 AM
Will this quick disconnect work with other brands that meet the Series B standard?
Answer by: Customer Support on Jul 22, 2025, 6:40 AM
Because it meets ISO 7241-1 Series B standards, it should be compatible with other couplings made to that spec.

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