Frequently bought together:
Description
2403X0606 (commonly formatted as 2403-06-06) is the standard industry part number for a #06 Male JIC to #06 Male JIC Straight Union Hydraulic Adapter Fitting.
It acts as a straight connector to join two female hydraulic lines or hose ends of matching sizes together. The alphanumeric designation breaks down into the following technical specifications:
Model & Spec Breakdown
- 2403 / 2403X (Series): Identifies the configuration as a Straight Male JIC 37° Flare Union. It relies on a metal-to-metal 37-degree cone seating surface to form a high-pressure mechanical seal without requiring thread sealant.
- X0606 (Size): Indicates that both ports share an identical size, measured in 16ths of an inch (
6/16″):- Side 1 End Size: 3/8-inch Male JIC (with a 9/16-18 UNF straight thread).
- Side 2 End Size: 3/8-inch Male JIC (with a 9/16-18 UNF straight thread)]
Key Performance Features
- High-Pressure Performance: Typically rated to comfortably handle dynamic operating pressures up to 5,000 to 6,000 PSI when machined from heavy-duty carbon steel.
- Engineering Standards: Fully compliant with SAE J514 design frameworks, ensuring reliable thread tolerance, burst pressures, and interchangeability with standard global equipment.
- Universal Interchangeability: Directly substitutes for equivalent part numbers across major fluid power manufacturers, including Parker 6 HTX-S, Gates 06MJ-06MJ, Aeroquip 2021-6-6S, and Weatherhead 7305X6.










