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

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

The FS6400-04-04 ORFS to O-Ring Stud Straight is a straight hydraulic adapter designed to provide a reliable transition between Male O-Ring Face Seal (ORFS) and Male O-Ring Boss (ORB) connections in compact hydraulic systems. It features a 9/16-18 UNF ORFS male connection (Size 04) on one end and a 7/16-20 UNF ORB male stud connection (Size 04) on the other, ensuring secure, leak-free performance in high-pressure hydraulic applications.

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 technology ensures superior leak prevention under vibration, pressure fluctuations, and continuous operation.

Specifications

• Part Number: FS6400-04-04
• 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: 04
• Thread 2 Size: 7/16-20 UNF
• Standard Compliance: SAE 520120