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

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Description & Features

The Eaton HK Series Brass Quick Disconnects provide reliable fluid transfer solutions across various industries including agriculture construction and fluid transfer. These couplings are engineered to meet ISO standard 7241-1 Series B dimensional requirements and feature brass construction with stainless steel springs for enhanced corrosion resistance and compatibility with diverse fluids.

Equipped with self-sealing poppet valves these quick disconnects offer superior sealing performance under both high and low pressure conditions. The standard seal material is Buna-N with additional seal options available in PTFE Neoprene FKM EPDM and Kalrezreg;. The coupling size is -12 featuring a 3/4-14 NPTF thread.

The product operates within a temperature range of -40deg;F to +250deg;F for Buna-N. The air inclusion maximum is 11.50 cubic centimeters while the fluid loss is 9.30 cubic centimeters ensuring efficient fluid management.

Supplier Part Number: B6KP31

MPN: EAR99

Specifications

A
2.36
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
Coupling Size
-12
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
0.75
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
B6KP31
Thread 1
3/4-14
Thread Sealant
No
Alternate Part Numbers
Alternate Part Number C1KY54, Alternate Part Number MI-01331515, Alternate Part Number MINO-00015X08973, Alternate Part Number MINO-00402F32498
Product Weight
0.44 lbs

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Product Questions & Answers (2)

Question by: Steve W on Aug 26, 2025, 8:29 PM
trying to swap out an old hydraulic coupler. is this one the -12 male half with 3/4-14 female NPTF threads?
Answer by: Customer Support on Aug 27, 2025, 9:14 PM
The B6KP31 is the male half in the HK Series Industrial Interchange (ISO 7241-1 Series B) and it has a 3/4-14 female NPTF pipe thread on the NPT end. It is a -12 coupling size.
Question by: Harvey M on Jun 18, 2025, 7:26 AM
What kinda stuff can I hook this up to? Tractors, loaders...what else?
Answer by: Customer Support on Jun 20, 2025, 6:51 AM
This quick disconnect is suitable for use in agriculture, with hydraulic tools, in general industry, construction, fluid transfer, transportation, military, law enforcement/rescue, chemical, oil and gas, consumer products, HVAC, food and beverage, trucks, aerospace, and medical applications.