Parker 11543-20-20 Sae Code 61 Flange Hose Fitting 1.25 in

Product Description

The PARKER 11543-20-20 is a straight SAE Code 61 flange head fitting designed for high-pressure hydraulic hose assemblies. Built from steel with a threaded connection type, it accepts hoses with a 1.25 inch inside diameter, corresponding to a hose size of 20 mm. The overall length is 4.7 inches. This fitting is installed by hydraulic technicians and fleet maintenance professionals on mobile equipment, industrial machinery, and hydraulic power units where a secure, leak-resistant flange connection is required at the hose end.

This fitting is suited for use in both industrial and mobile hydraulic systems that call for SAE Code 61 flange connections. It is rated for applications where high working pressures and vibration resistance are priorities. The straight geometry makes it appropriate for in-line hose-to-port connections where routing does not require an angled adapter. The Series 43 designation places it within a widely used Parker fitting family common in medium-to-heavy-duty hydraulic circuits.

Key Features

• SAE Code 61 flange head design for high-pressure hydraulic service
• 1.25 inch (20 mm) hose inside diameter for compatibility with larger hydraulic hose assemblies
• Straight shape with threaded connection for in-line installations
• Steel construction for durability in demanding hydraulic environments
• Meets ISO 12151-3-S-L standard for hose fittings
• California PROP 65 compliant

Compatibility

Designed for use with Parker 187 TC, ST; 302; 304; 387 TC, ST; 422; 424; 426; 436; 471TC; 471ST; 472TC; 482TC; 482ST; 487 TC, ST; 722 TC, ST; 787 TC, ST; 797 TC, ST; and 881 hoses.

Installation Notes

Installation should be performed by a qualified hydraulic technician. Depressurize and bleed the hydraulic system completely before removing or installing any hose or fitting. Inspect the flange sealing surface and mating port for damage or contamination before assembly. Follow SAE and ISO torque and assembly guidelines appropriate for Code 61 flange connections to ensure a leak-free joint.