Parker PP-00278 Hydraulic Hose Swivel Fitting 6mm Metric

Product Description

The PARKER PP-00278 is a straight swivel fitting designed for hydraulic hose assemblies. It connects a 6 mm (3/8 inch ID) hydraulic hose to a threaded port using an M18x1.5 metric thread. Constructed from steel, this fitting is built to handle the mechanical demands of hydraulic systems. The swivel design allows the hose to rotate during assembly, reducing torsional stress on the hose and making routing easier in tight spaces. At 1.97 inches overall length, it is a compact, inline component suited for high-pressure hydraulic line work. Licensed hydraulic system technicians and industrial mechanics are the primary installers of this fitting.

This fitting is rated for use in hydraulic hose systems across industrial, mobile, and fluid power applications. It is assigned to Parker Series 43 and is specified for use with a wide range of Parker hose series including 187, 302, 304, 387, 422, 424, 426, 436, 471TC, 471ST, 472TC, 482TC, 482ST, 487, 722, 787, 797, and 881 hoses in TC and ST configurations. Typical installation scenarios include mobile hydraulic equipment, industrial machinery, and fluid transfer systems requiring a swivel-style metric end connection.

Key Features

• Swivel design reduces torsional stress during hose routing and assembly
• M18x1.5 metric thread for compatibility with metric port connections
• 3/8 inch (0.375 inch) hose inside diameter — Parker 6 mm hose size
• Steel construction for durability in hydraulic service environments
• Straight shape for direct inline hose-to-port connections
• Meets ISO 12151-2-SWS standard for swivel fittings

Compatibility

Designed for use with Parker 187 TC, 187 ST, 302, 304, 387 TC, 387 ST, 422, 424, 426, 436, 471TC, 471ST, 472TC, 482TC, 482ST, 487 TC, 487 ST, 722 TC, 722 ST, 787 TC, 787 ST, 797 TC, 797 ST, and 881 hoses in 6 mm (3/8 inch ID) hose size, Parker Series 43.

Installation Notes

Installation should be performed by a qualified hydraulic technician or industrial mechanic familiar with hydraulic system assembly practices. Depressurize and bleed the hydraulic system completely before disconnecting or installing any fittings. Inspect all threads and sealing surfaces for damage before assembly. Follow applicable fluid power standards and equipment manufacturer torque specifications when tightening fittings.