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

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

The 6401X0606 Hydraulic Male Adaptor (3/8" MB x 3/8" MP) is a straight hydraulic fitting designed to connect SAE O-Ring Boss (ORB) ports to NPT pipe thread connections in high-pressure hydraulic systems. Constructed from durable carbon steel and rated for working pressures up to 4,000 PSI, this adapter provides a strong, leak-resistant transition between hydraulic components. The ORB end uses an O-ring seal for dependable sealing, while the NPT side provides a tapered pipe connection, making it a practical solution when hydraulic plumbing needs to speak two different thread languages.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 6401X0606
• Product Type: Hydraulic male adapter fitting
• Fitting Shape: Straight
• End 1 Type: Male SAE ORB (O-Ring Boss)
• End 1 Size: SAE 6 (9/16"-18 ORB)
• End 2 Type: Male NPT
• End 2 Size: 3/8" NPT (3/8"-18 tapered pipe thread)
• Working Pressure: Up to 4,000 PSI
• Material: Carbon steel
• Seal Type: O-ring seal on ORB side for reliable leak prevention
• Function: Connects SAE ORB ports to NPT threaded hydraulic lines or components

Ideal For

• Hydraulic hose and equipment connections
• Systems requiring SAE ORB to NPT thread transitions
• Agricultural, construction, and industrial hydraulic systems
• Repairs where high-pressure durability and reliable sealing are required
• Mechanics who appreciate that the right adapter saves a lot of creative plumbing—and a lot of hydraulic oil