Parker 10143-6-4 Male Rigid Hydraulic Hose Fitting

Product Description

The PARKER 10143-6-4 is a male rigid straight hydraulic hose fitting designed for high-pressure fluid conveyance in industrial and mobile hydraulic systems. Built from steel with a male NPTF threaded connection, this fitting provides a pressure-tight mechanical seal rated to 10,000 psi maximum working pressure. It accommodates a 1/4 inch (0.25 inch) inside diameter hose, uses a 3/8-18 thread size, and measures 1.86 inches in overall length. The straight configuration simplifies inline hose-to-port connections. Licensed hydraulic technicians and fluid power specialists install this fitting in both stationary and mobile equipment applications.

This fitting is suited for medium-bore hydraulic hose assemblies operating at elevated working pressures in industrial machinery, mobile equipment, and fluid power circuits. It is rated for use with Parker hose series including 187, TC, ST, 302, 304, 387, 422, 424, 426, 436, 471TC, 471ST, 472TC, 482TC, 482ST, 487, 722, 787, TC, ST, 797, and 881 hoses, making it a widely applicable component across Parker hose product lines.

Key Features

• 10,000 psi maximum working pressure for demanding hydraulic service
• Male NPTF threaded connection delivers a pressure-tight mechanical seal without sealant dependency
• Straight geometry for direct inline hose-to-port assembly
• Steel construction for durability in industrial and mobile hydraulic environments
• 3/8-18 thread size with 11/16 inch hex for standard wrench installation
• Parker Series 43 fitting for broad hose-line compatibility

Compatibility

Designed for use with Parker hose series 187, TC, ST, 302, 304, 387, 422, 424, 426, 436, 471TC, 471ST, 472TC, 482TC, 482ST, 487, TC, ST, 722, TC, ST, 787, TC, ST, 797, and 881 hoses with a 1/4 inch inside diameter.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power specialist. Depressurize and bleed down the hydraulic system fully before removing or installing any hose fitting. Use a properly sized wrench on the 11/16 inch hex — avoid over-tightening, which can damage the NPTF thread or distort the fitting body. Inspect the thread and sealing surfaces for damage before assembly and verify that the hose series and ID are compatible with this fitting prior to crimping or field attachment.