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HK Series Industrial Interchange Series B Brass Hydraulic Quick Disconnect, Female Half, -06 Coupling, 3/8-18 Female NPT

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Description & Features

Constructed with brass for durability the Eaton HK Series Brass Quick Disconnects ensure optimal resistance to corrosion and are compatible with various fluids. Designed for a wide range of applications including agriculture hydraulic tools and aerospace this quick disconnect coupling features a female 3/8-18 NPT connection for ease of use.

It meets the dimensional requirements of the ISO standard 7241-1 Series B ensuring consistent performance in demanding environments. Self-sealing poppet valves provide efficient high and low-pressure sealing minimizing fluid loss with a maximum air inclusion of 2.90 cubic centimeters.

This coupling operates efficiently in a temperature range of -40deg;F to +250deg;F with its standard Buna-N sealing material. Other seal options include PTFE Neoprene FKM EPDM and Kalrezreg; catering to various operational conditions.

The Danfoss/Eaton Hansen HK Series Quick Disconnect Couplings Socket is suitable for use in industries such as construction fluid transfer oil and gas HVAC and more. The push-to-connect end and NPTF threading simplify installation and maintenance.

Maximum operation temperature ranges from -65deg;F for Neoprene to +400deg;F for FKM making this component versatile for extreme conditions.

MPN: EAR99

Supplier Part Number: B3H21

Specifications

A
2.56
Air Inclusion Max
2.90 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
B
1.42
Coupling Size
-06
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13553
End Gender 2
13555
End Size 1
0.38
End Size 2
0.38
End Type 1
Push to Connect
End Type 2
NPTF
Fluid Loss
2.10 Cubic_centimeter
Minimum Working Temperature
-40
Safety locking Mechanism
None
Seal Material
Buna-N
Supplier Part Number
B3H21
Thread 1
3/8-18
Thread Sealant
No
Alternate Part Numbers
Alternate Part Number C1KY51, Alternate Part Number MI-06230696, Alternate Part Number MINO-00015X16230, Alternate Part Number MINO-00402F32430
Product Weight
0.46 lbs

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Product Questions & Answers (1)

Question by: Janice W on Sep 21, 2025, 10:13 AM
trying to swap out an old coupler, is this the female half with a 3/8-18 female npt thread and the -06 size?
Answer by: Customer Support on Sep 22, 2025, 10:25 AM
You are looking at the socket or female half in the HK Series Industrial Interchange (ISO 7241-1 Series B) with a -06 coupling size and a 3/8-18 female NPTF threaded end.