Hydraulic Adaptor, 1/4" FFORX Cap (04:9/16"-18)

Hydraulic Adaptor, 1/4" FFORX Cap (04:9/16"-18)

The FS304C04 Hydraulic Adaptor is a compact hydraulic ORFS cap fitting designed to securely seal and protect unused hydraulic hose and fitting connections in high-pressure systems. Featuring a 1/4" Female Flat Face O-Ring (FFORX) cap connection with 9/16"-18 threads, this adaptor helps prevent leaks while keeping dirt, moisture, and contaminants out of hydraulic components during maintenance, storage, or transport. Its flat-face O-ring sealing design provides dependable leak resistance in agricultural, industrial, and mobile hydraulic applications. Small fitting, big responsibility—especially when hydraulic oil costs more than coffee these days.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: FS304C04
• Product Type: Hydraulic adaptor / ORFS cap
• Connection Style: Female Flat Face O-Ring (FFORX) Cap
• Thread Size: 9/16"-18
• Dash Size: -04 / 1/4"
• Seal Type: O-Ring Face Seal (ORFS)
• Configuration: Straight hydraulic cap
• Material: Carbon steel
• Finish: Corrosion-resistant zinc plating
• Application: Designed to cap and seal unused hydraulic hose ends and fittings
• Pressure Capability: Suitable for high-pressure hydraulic systems
• Leak Prevention: Flat-face O-ring design helps minimize leaks and vibration seepage
• Durability: Built for rugged agricultural, industrial, and construction equipment environments
• Installation: Hex-body design for secure wrench tightening
• Compatibility: Fits standard ORFS hydraulic hose and fitting systems
• Protection: Helps prevent contamination from dirt, moisture, dust, and debris

Ideal For

• Capping unused ORFS hydraulic hose connections
• Hydraulic maintenance and repair operations
• Farm equipment, skid steers, loaders, and industrial machinery
• Protecting hydraulic systems during storage or transport
• Anyone who knows one uncovered hydraulic fitting can somehow collect half the dirt in the shop overnight.