Description
Tomco THK4 TK4-26-002 1/2 NPT Brass Hydraulic Quick-Disconnect Coupler Plug Set
This is a Tomco Series THK4 hydraulic quick-disconnect coupler and plug set in 1/2 NPT brass, part number TK4-26-002, manufactured by Tomco (MCO Division) in Cleveland, Ohio, USA. The set features a double shut-off design, meaning both the female coupler and the male plug have internal valves that automatically close when the connection is broken, preventing fluid loss and contamination on either side of the line.
Specifications & What's Included
- Series: THK4
- Part Number: TK4-26-002
- Thread Size: 1/2 NPT (National Pipe Taper)
- Material: Brass
- Shut-Off Type: Double shut-off (valve closes on both coupler and plug at disconnect)
- Locking Mechanism: Ball-lock quick-disconnect
- Includes: One female coupler (with ball-lock sleeve and internal valve) and one male plug (hex body, NPT base)
- Manufacturer: Tomco, MCO Division — Cleveland, Ohio, USA
- Outer diameter of female coupler body: approximately 1.5 inches (per photos)
Applications
Tomco THK4 series hydraulic quick-disconnect couplings are used in hydraulic systems where lines must be connected and disconnected frequently without fluid spillage or air ingestion. The double shut-off feature makes them well suited for high-pressure hydraulic circuits on machine tools, industrial presses, mobile hydraulic equipment, and test rigs where contamination control matters. The 1/2 NPT thread size is a common standard fitting in North American hydraulic and fluid-power systems. Tomco was a well-regarded American manufacturer of hydraulic couplings, and THK4 series fittings from their Cleveland, Ohio facility are compatible with standard NPT-ported hydraulic components and circuits. These types of couplings remain in everyday use in industrial maintenance, fluid-power repair, and legacy machine upkeep where original NPT-threaded connections are specified.
This Tomco THK4 TK4-26-002 1/2 NPT Brass Hydraulic Quick-Disconnect Coupler and Plug Set has been inspected and appears to be in good used condition. Both the female coupler and male plug show light tarnish and surface patina consistent with prior use and storage, but there is no visible damage to the threads, ball-lock mechanism, or body of either piece. The internal valve seat and ball detents on the female coupler appear intact. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Tomco |
Model: |
THK4 |
MPN: |
TK4-26-002 |
Secondary Model: |
Series THK4 |
Type: |
Hydraulic Quick-Disconnect Coupler and Plug Set |
SKU: |
43055 |
Thread Size: |
1/2 NPT |
Thread Type: |
NPT (National Pipe Taper) |
Material: |
Brass |
Shut-Off Type: |
Double Shut-Off |
Connection Type: |
Quick-Disconnect |
Set Includes: |
Female Coupler and Male Plug |
Locking Mechanism: |
Ball-Lock |
Series: |
THK4 |
Country/Region of Manufacture: |
United States |
Seller Notes: |
Set includes one female coupler and one male plug — no additional hardware. |
Condition Notes: |
This Tomco THK4 TK4-26-002 1/2 NPT brass hydraulic coupler and plug set has been inspected and is in good used condition. Both pieces show light tarnish and surface patina; threads and ball-lock mechanism appear intact. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
