Danfoss / Eaton Cplng HK Series

Description & Features

Constructed from 316 stainless steel with FKM seals, this male half quick disconnect coupling is built for demanding fluid transfer applications across agriculture, construction, oil and gas, aerospace, and military environments. The 3/8 in. port connects via a Push to Connect male end and a 3/8 in. NPTF female port, with a ball lock internal connection and a two-way valve configuration supporting flow rates up to 6 gallons per minute.

The Danfoss / Eaton Cplng HK Series carries ISO 7241-1 Series B certification and exceeds ISO 16028 operating pressure requirements, making it suitable for high-demand hydraulic tool and industrial applications. Rated for operation down to -40°F, it connects and disconnects without special tools. The Hansen sub-brand lineage and stainless steel construction make this coupling well-suited for chemical, food and beverage, HVAC, and other fluid transfer applications where corrosion resistance and reliability are priorities.

SKU: ML3K21143

Supplier Part Number (MPN): ML3K21143

Specifications

Alternate Part Numbers
Alternate Part Number MINO-00015X14369
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
Certifications
ISO 7241-1 Series B
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 2
0.38
End Type 1
Push to Connect
End Type 2
NPTF
Features
Quick connect and disconnect|No need for special tools|Exceeds ISO 16028 operating pressures
Flow Rate1
6 gallons per minute
ICC
Quick Disconnect Couplings
Internal Connection Type
Ball Lock
Item Type
Male Half
Language
English
Minimum Working Temperature
-40
Net Pack Quantity Units
EA
Port Size
3/8
Product Material
316 Stainless Steel
Product Width
1.01
Safety locking Mechanism
None
Seal Material
FKM
Sub Brand
Hansen
Supplier Part Number
ML3K21143
Valve Type
2 way
Product Weight
0.07 lbs

Product Questions & Answers (1)

Question by: Marvin M on Sep 23, 2025, 8:38 AM
What size is the port on this coupling? I need to make sure it'll fit my setup.
Answer by: Customer Support on Sep 25, 2025, 8:33 AM
This coupling uses a 3/8 inch port, connecting with a Push to Connect male end and a 3/8 inch NPTF female port.