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HK Series Industrial Interchange Series B Steel Hydraulic Quick Disconnect, Female Half, -12 Coupling, 3/4-14 Female NPT

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A
3.48
Air Inclusion Max
11.50 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
2.22
Coupling Size
-12
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
0.75
End Size 2
0.75
End Type 1
Push to Connect
End Type 2
NPTF
Fluid Loss
9.30 Cubic_centimeter
Minimum Working Temperature
-40
Safety locking Mechanism
None
Seal Material
Buna-N
Supplier Part Number
6HP31
Thread 1
3/4-14
Thread Sealant
No
Alternate Part Numbers
Alternate Part Number C1LX46, Alternate Part Number MI-06098067, Alternate Part Number MINO-00015X00457
Product Weight
1.34 lbs
Product Questions & Answers 4

Product Questions & Answers

Will this quick disconnect work alright with hydraulic tools?
Question by: Debbie S on Jan 25, 2026, 4:18 PM
Absolutely. This HK Series quick disconnect is commonly used in hydraulic tool applications, along with general industry, construction, and agriculture.
Answer by: Customer Support on Jan 27, 2026, 6:59 AM
What kind of applications is this fitting generally used for?
Question by: Peggy B on Jul 23, 2025, 4:06 PM
This Eaton HK series quick disconnect is commonly found in fluid transfer applications within agriculture, construction, aerospace, and general industry. It also sees use in transportation, military, chemical, oil and gas, HVAC, food and beverage, trucks, and medical devices.
Answer by: Customer Support on Jul 25, 2025, 11:38 AM
what seal material comes standard on this coupling, and is it gonna hold up runnin hydraulic fluid in cold weather?
Question by: Hugh A on Oct 1, 2025, 12:14 PM
Buna-N is the standard seal on this one, and it covers a range of -40°F up to +250°F. For most hydraulic fluid applications in cold operating conditions, that range holds up well. If your setup pushes past those limits in either direction, there are alternative seal options available including PTFE, Neoprene, FKM, EPDM, and Kalrez, each rated for different temperature windows depending on what your system demands.
Answer by: Customer Support on Oct 3, 2025, 10:47 AM
got an old Series B coupler on a hose, is this the right female half if i need a -12 with 3/4-14 female pipe threads?
Question by: Dean M on Mar 21, 2026, 2:42 PM
Match-up comes down to two things here: it is a Series B (ISO 7241-1 Series B) female socket, and the threaded end is 3/4-14 NPTF female. It is also a -12 coupling size, with a female push-to-connect end on the mating side.
Answer by: Customer Support on Mar 23, 2026, 6:00 AM

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