Hydraulic Fitting, 3/8"X1/4" Female Flat Face O-Ring 90Deg

The 6G-4FFORX90S Hydraulic Fitting is a 90° female flat face O-ring (FFOR) MegaCrimp® coupling built for leak-resistant hydraulic connections in demanding equipment applications. Featuring the patented MegaCrimp® design with an internal “C” insert, it helps distribute crimp forces evenly to form a concentric seal, while also accommodating a range of hose constructions and wall thicknesses—making it a strong choice for simplifying hose-end inventory on both one- and two-wire hoses.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 6G-4FFORX90S
• Product Type: Hydraulic hose fitting / MegaCrimp® coupling
• Fitting Style: 90° Female Flat Face O-Ring (FFOR)
• Hose ID: 3/8 in
• Fitting Nominal Size: 1/4 in
• Thread Size: 9/16"-18
• Thread Pitch: 18
• Nut Hex Size: 17 mm
• Overall Length: 2.42 in
• Cutoff Length: 1.32 in
• Drop Length: 0.83 in
• Seal Design: Patented MegaCrimp® with internal “C” insert for even crimp force distribution and concentric sealing
• Hose Compatibility: Designed to work across multiple hose constructions and wall thicknesses (including one- and two-wire hoses)

Ideal For

• Hydraulic lines needing a 90° turn with a flat face O-ring seal
• Applications where leak resistance and consistent crimp performance are critical
• Shops aiming to simplify inventory by covering multiple hose ODs with one coupling size
• Repair and replacement work on mobile, agricultural, and industrial hydraulic systems
• Hose assemblies using 3/8" ID hose with a 9/16"-18 female connection