FS6400-04-06 ORFS to O-Ring Stud Straight

FS6400-04-06 ORFS to O-Ring Stud Straight | Steel Hydraulic Fitting

The FS6400-04-06 ORFS to O-Ring Stud Straight is a straight hydraulic adapter designed to connect Male O-Ring Face Seal (ORFS) systems to Male O-Ring Boss (ORB) stud-style ports in compact and high-pressure hydraulic assemblies. It features a 9/16-18 UNF ORFS male connection (Size 04) on one end and a 9/16-18 UNF ORB male stud connection (Size 06) on the other, providing a secure and leak-free hydraulic transition.

Manufactured from high-strength steel and engineered to meet SAE 520120 standards, this adapter delivers excellent durability, corrosion resistance, and long service life in demanding industrial, agricultural, construction, and mobile hydraulic environments. The combination of ORFS flat-face sealing and ORB O-ring sealing ensures reliable leak prevention under vibration, pressure fluctuations, and continuous operation.

Specifications

• Part Number: FS6400-04-06
• Material: Steel
• Shape: Straight Stud Adapter
• Thread 1 Type: Male O-Ring Face Seal (ORFS)
• Thread 1 Nominal Size: 04
• Thread 1 Size: 9/16-18 UNF
• Thread 2 Type: Male O-Ring Boss (ORB) Stud
• Thread 2 Nominal Size: 06
• Thread 2 Size: 9/16-18 UNF
• Standard Compliance: SAE 520120