Hydraulic Adapter, 1/4"FS X 1/4"MP

Hydraulic Adapter, 1/4"FS X 1/4"MP

The FS2404X0404 Hydraulic Adapter (1/4" FS × 1/4" MP) is a straight hydraulic fitting designed to connect ORFS (O-Ring Face Seal) hose ends to NPT pipe-thread ports. Built from durable carbon steel and rated for working pressures up to 5000 PSI, it provides a strong and dependable connection in hydraulic systems. The male ORFS end uses an O-ring face seal to create a leak-resistant connection, while the male 1/4" NPT end threads into standard pipe ports, making it useful for equipment repairs, hydraulic conversions, and system plumbing. It’s a compact adapter that helps two different hydraulic thread styles work together—because in hydraulics, a good seal keeps the pressure where it belongs.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: FS2404X0404
• Product Type: Hydraulic adapter fitting
• Fitting Shape: Straight
• End 1 Type: Male ORFS (O-Ring Face Seal)
• End 1 Size: ORFS 4 (9/16"-18)
• End 2 Type: Male NPT (National Pipe Thread)
• End 2 Size: 1/4 in NPT (1/4"-18 tapered)
• Working Pressure: Up to 5000 PSI
• Material: Carbon steel
• Seal Type: O-ring face seal on ORFS side; tapered pipe thread on NPT side
• Application: Hydraulic systems, agricultural equipment, and industrial machinery

Ideal For

• Connecting ORFS hydraulic hose fittings to NPT ports
• Hydraulic system repairs and plumbing modifications
• Agricultural, construction, and industrial hydraulic equipment
• High-pressure hydraulic applications requiring reliable sealing
• Technicians who know that when hydraulic fittings seal properly, the only thing moving under pressure should be the machine—not the oil.