Parker FEM-621-12FO-NL Female Straight Thread Coupler

Product Description

The PARKER FEM-621-12FO-NL is a female straight thread hydraulic hose coupler rated for demanding fluid power applications. Built from steel with a threaded connection type, this fitting accepts a 5/8-inch hose and uses a 1-1/16-12 thread size. It carries a maximum working pressure of 3,625 psi and supports a maximum flow rate of 20.00 GPM. At 3.7 inches overall length and 1.4 pounds, this coupler is sized for compact integration into hydraulic circuits. Licensed hydraulic technicians and equipment mechanics install this fitting in high-pressure fluid power systems where a reliable, leak-resistant straight thread connection is required.

This coupler is suited for use with hydraulic tools and skid loader attachments in both mobile and stationary hydraulic systems. Its straight body profile and SAE shaft type make it a practical choice for inline hose terminations where space constraints or routing angles call for a no-bend connection point. The FEM series coupler conforms to ISO 16028, making it appropriate for applications where standardized quick-disconnect performance is specified. Typical installations include construction equipment, agricultural machinery, and industrial hydraulic power units.

Key Features

• Maximum working pressure of 3,625 psi for high-demand hydraulic circuits
• Maximum flow rate of 20.00 GPM
• Steel construction for durability in harsh service environments
• 1-1/16-12 thread size with straight body geometry for simplified routing
• Conforms to ISO 16028 standard
• Compatible with 5/8-inch hydraulic hose

Compatibility

Designed for use with hydraulic tools and skid loader attachments. Conforms to ISO 16028 and is built to SAE specifications, making it a standard-compliant replacement or addition in hydraulic hose assemblies using 5/8-inch hose and 1-1/16-12 female straight thread connections.

Installation Notes

Installation should be performed by a qualified hydraulic technician or mechanic familiar with high-pressure fluid power systems. Depressurize and de-energize the hydraulic circuit fully before disconnecting or installing any fittings. Verify thread engagement and torque to the system manufacturer's specifications using calibrated hand tools. Inspect the connection for leaks before returning the system to service.