Parker 16-1 F5OF-S Pipe Adapter 4500 Psi Zinc-plated Steel

Product Description

The PARKER 16-1 F5OF-S is a straight male pipe adapter designed to connect male straight thread O-ring (UN/UNF-2A) fittings to male NPTF threads in hydraulic and industrial fluid systems. It features a 1-5/16-12 male straight thread O-ring end and a 1-inch male NPTF end, with a maximum working pressure rating of 4,500 psi. The body is zinc-plated steel, providing corrosion resistance suited to demanding shop and field environments. Overall length is 2 inches with a 1-1/2-inch hex for standard wrench engagement. Hydraulic technicians, maintenance mechanics, and fluid power specialists install this adapter in high-pressure plumbing assemblies.

This adapter is used in industrial hydraulic systems, mobile equipment, and heavy-duty fluid power circuits where a straight thread O-ring port must be transitioned to an NPTF threaded connection. Typical applications include pump outlets, valve ports, manifold connections, and cylinder plumbing where leak-free performance at elevated pressures is required. The straight configuration keeps routing compact and minimizes stress on adjacent fittings.

Key Features

• Maximum working pressure of 4,500 psi for high-pressure hydraulic service
• Male straight thread O-ring (UN/UNF-2A) x male NPTF straight configuration
• Zinc-plated steel construction for corrosion resistance
• 1-1/2-inch hex allows engagement with standard open-end or combination wrenches
• Compact 2-inch overall length suits tight plumbing layouts
• Thread size 1-5/16-12 x 1 inch covers common large-bore hydraulic port transitions

Compatibility

Designed as an OEM-style replacement or service fitting for industrial hydraulic and fluid power systems requiring a male straight thread O-ring to male NPTF adapter at 1-5/16-12 x 1-inch thread sizes.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power mechanic. Depressurize and isolate the hydraulic circuit completely before removing or installing any fittings. Inspect O-ring seating surfaces for nicks or contamination prior to assembly and ensure the O-ring is properly seated before torquing. Follow applicable hydraulic system manufacturer guidelines and industry standards for fitting assembly and system pressure testing after installation.