Hydraulic Male Adaptor, 3/8"MJ X 3/8"MB

Hydraulic Male Adaptor, 3/8"MJ X 3/8"MB

The 6400X0606 Hydraulic Male Adapter, 3/8" MJ × 3/8" MB is a straight hydraulic fitting designed to connect JIC and ORB hydraulic connections in high-pressure fluid systems. This adapter features a 3/8" Male JIC (37° flare) on one end and a 3/8" Male SAE O-Ring Boss on the other, allowing reliable transitions between two common hydraulic fitting standards. Constructed from durable carbon steel, it is built to withstand demanding operating conditions with a working pressure rating of up to 5000 PSI. In short, it’s the kind of adapter that quietly bridges two hydraulic standards so your system runs smoothly instead of arguing about thread types.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 6400X0606
• Product Type: Hydraulic straight male adapter fitting
• Fitting Shape: Straight
• End 1 Type: Male JIC (37° flare)
• End 1 Size: JIC 6 – 9/16"-18 thread
• End 2 Type: Male SAE O-Ring Boss (ORB)
• End 2 Size: SAE 6 – 9/16"-18 thread
• Material: Carbon steel
• Working Pressure: Up to 5000 PSI
• Function: Connects JIC hydraulic lines to ORB ports for secure fluid transfer
• Seal Type: 37° flare seal (JIC) and O-ring boss seal (ORB)

Ideal For

• Connecting JIC hoses to ORB hydraulic ports
• Hydraulic system installation and maintenance
• Agricultural, industrial, and construction equipment
• Hydraulic manifolds, valves, and cylinder connections
• Technicians who prefer their fittings leak-free and pressure-ready instead of dripping on the shop floor